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SIDI Mag-1 Boots
  • SIDI Mag-1 Boots - Black
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  • SIDI Mag-1 Boots
  • SIDI Mag-1 Boots

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SIDI Mag-1 Boots Videos

SIDI Mag 1 Boots

The Sidi Mag-1 Boots feature an innovative internal brace system constructed from carbon fiber for the ultimate in support and light weight design. The Mag-1 Boots weigh in at 4.4 pounds each, or 17% less than the Vortice boots. An all new Micrometric Tecno 3 magnetic closure system makes adjustments quick and easy and the internal brace system provides ankle stability and flexibility.

The rear upper is made in polyurethane and is assembled to the boot with two screws: one on the outside under the TECNO-3 Magnetic mechanism, the other on the inside which holds the micrometric adjuster strap. The screws support and block the internal support system which is made ​​with carbon fiber beams, making up the frame of the boot. This system allows excellent flex movement front-to-back while being firm side-to-side. An all new Micrometric Tecno-3 magnetic closure mechanism is easy and quick to use as well as being highly adjustable and light in weight. The TECNO-3 Magnetic closures close the boot with an extremely resistant steel wire, that is hooked to the clip with the aid of a magnet.

Sidi has created an incredibly solid boot with well-chosen design elements and materials to create a very lightweight, yet ultra-protective race boot system.


  • Arch and Achilles areas are covered with Sidi’s exclusive elastic textile and injection molded polyurethane comfort panels
  • Arch area utilizes two TPU bands next to the TECNO-3 Magnetic closures, for a maximum support and wrap of the arches
  • Asymmetric and shaped shock absorbing heel cup, smooth and flat inside for more adherence with the bike, with shock absorbing system in the back and outside
  • The shell and the shock absorbing system are replaceable through a screw  and  an interlocking system
  • Nylon inner sole with removable arch support pad
  • Replaceable external shin, heel and toe sliders 
  • Nylon inner sole
  • Dual compound sole
  • High stress areas are double stitched
  • TPU shift pad
  • Perforated, Teflon treated nylon inner lining with Cambrelle lining in the toe area
  • Recessed screws used to attach replaceable parts so as to not damage bike
  • Toe slider made from nylon reinforced with fiberglass
  • Toe Slider features new air intake and alloy insert
  • Adjustable calf on the Sidi Mag-1 Boots can accommodate riders with up to an 15-inch calf diameter when measured 11.5-inches up from the bottom of the heel
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SIDI Mag-1 Boots 4.9 5 21 21
Just when I thought Sidi boots couldn't be any better Bought these to replace my seriously worn, and few times crashed, Sidi ST Air boots. Wow!, is my main reaction after using them for a few weeks. Easy to get on and off, simple to adjust exactly to fit, air flow is amazing, most comfortable motorcycle boot I've ever worn, and they really do allow unhindered movement around the bike and controls. Well done, Sidi! March 22, 2015
Narrow toe box and Calf I wear a size 11 boot. I am 6' tall and 220lbs and fit. I had to exchange the 11's for an 11 1/2 as they were too narrow. I have a wide foot, which measures 4 1/2" wide if you stand on a ruler. I had to get a ski shop that does custom ski boot fitting to heat up and stretch the outside where the joint is for my little toe. They are also very small in the calf. When putting them on over Dainese leather pants, its very difficult to get the loops to hook, especially the top loop, even with the internal ratchet strap loosened all the way. Once they are on, they feel good, very light, and there are no pinch points when you flex them. I'd recommend them, but not for anyone with thick calves, wide feet. February 2, 2015
My husband loves the boots! He says not only are they stylish but very comfortable. I'm happy that my husband loves the boots. They are very nice looking and again he says that they are very comfortable and he can't wait to try them out on the track. December 29, 2014
Outstanding!! This was my first motorcycle boot. The amount of flexibility in the calf is nothing short of amazing. When using my adjustable rearsets the grip and feedback provided is uncanny! I feel the is glued to my feet, and i receive an unreal amount of "feel" through the bike down tot he pavement. I would advise to buy 1/2 size larger. I am a size 11 according to a measuring device and when i ordered the corresponding UK size it feels snug at the toe. I have to leave the bottom crank slightly loose to walk comfortably. However when i am riding i do not feel the same snug feeling. Over all this is an amazing boot! I will be a Sidi rider for life! December 24, 2014
Amazing boots -- Happy feet My third pair of Sidis, my first racing boot. Couldn't be happier. Amazing protection, great bike feel, comfortable, and adequate air flow with the toe vents open. I picked these boots specifically over the Vortice mainly because I did not skip leg day and I have a heck of a time fitting into sport / racing boots. I especially do not fit into most racing boots I've tried with zippers, particularly Alpinestars. I usually end up with an okay fit in the calves and then a lot of slack in the ankle. Sidi's Micrometric Tecno-3 system addresses both concerns. My 16" calves have plenty of space, even with my leathers inside the boot. I do have to squeeze the boot with one hand to get the magnet to snap over the post. Then I can crank down the ankle and foot and get a perfect custom fit. It took me about 3 rides for the boots to feel nice and broken in. The first ride in new boots is always sketchy with shifting. I feel the footbed is slightly narrow. But I prefer the boot feeling slightly tight on the sides than feeling too long. I'd say these boots run a bit smaller than Sidi's touring boots, so you might consider going up one size if you are making that transition. November 13, 2014
Overall a great boot I have had these boots since they came out. Have done a mix of track and urban riding with them. Overall they are great boots. They are protective and you feel secure wearing them. They fit true to size. They are actually pretty easy to take on and off. They are very durable. I had a very minor slide while wearing them. Aside from scratches no other pieces were affected. The air flow is amazing when the vents are open. I feel air move around my entire foot and ankle. As is with all boots the more protective they are the harder they are to walk in or stand for long periods of time. I wouldn't trade these boots for anything. October 24, 2014
Fourth pair of SIDI and counting =) I've been looking to buy the most protective boots I can get my hands on. These fit the bill. I've been reluctant to buy the Vortice because it seemed like too much hassle to get them on and off and one thing about gear, if it's inconvenient, it ends up not being used... Updates/upgrades to these make it so much easier to use. I do have wider feet and I wear 9.5 US in Mega series from SIDI but 10 in these. I do find them quite comfortable. Protection seems rock solid, hopefully I won't have to find out but I do feel confident in them. I love the styling on these boots, looks technical. Biggest takeaway I would say is the ease of usage. I would even use these everyday, given I had street shoes for off the bike. September 14, 2014
best boot I've owned I bought these boots a couple of months ago and have put some miles on them. I’ve owned a couple pair of Sidi Vertigos and have been happy with Sidi especially with the ability to torque the boot down to size. The Revzilla video sold me on the Mag 1. However, I was concerned about airflow and durability. To begin with, the boots look great and have a quality build. They fit true to size and for me, felt great from the start. I had literally no break in period. The adjustment system with the magnetic adjusters works great and is easy to use. This makes for a quick on and off which is great at the track. The magnetic adjustment system and the fact that unlike the Vertigos, there’s nothing to get hung up on rearsets, is what drew me to the boot to begin with and I’ve not been disappointed. The airflow with the vent open has been totally adequate in hot summer So. California weather . I recommend these boots. August 20, 2014
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Have a functionality, fit, or otherwise product-specific question about the SIDI Mag-1 Boots? Ask it here! If you have a customer service or shipping question, please direct it to our Customer Service department.

SIDI Mag-1 Boots
Already Asked: 13 Questions, 37 Answers
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RevZilla Store asked: Why did you choose this?
Michael L: Great boot; needed a slightly larger size Feb 20, 2015
Debra M: My son did the research and he really wanted these boots! Dec 10, 2014
Darryl M: I own a bunch of SIDI boots, bicycle shoes - all great. Phil noted these are more flexible than Vortice and I needed the feel of the Streetburner, so here we are..... Sep 23, 2014
K L: I tried these on and it honestly felt like I was wearing sneakers. So comfortable. Sep 4, 2014
ADAM M: because I need new boots Aug 5, 2014
Lorenzo E: I chose these boots over the high end Astars and Daineses because of the stream lining of the boot and the lack of zippers. Both Astars and Dainese also haven' had any major make overs in the last few seasons either. I had a pare of Astars previously and they ddin't fit my narrow foot as well as I would have liked and Sidis run a little narrow so I'm hopping the fit will be spot on. Aug 5, 2014
Brian A: Needed better-fitting boots. These are it! Jul 1, 2014
Peter L: I've owned three pairs of bike boots in twenty years, so I like to buy ones that last..... and my last pair of sidi Vertigos went for four years day in day out. So let's see what punishment these suckers can take :) They also sound like they're the most comfortable and easiest to extricate one's self from - of the super HD end of the Sidi 'serious' boot lineup. Jun 27, 2014
John R: Been wearing sidis forever. They work for me. Last pair was getting worn out, got the latest. Jun 2, 2014
A shopper asked: With the vents closed, how do these feel in cold, dry weather (25-50 °F/ -4 to 10 °C)? I currently have SIDI Cobra Air which even with winter socks feel very cold due to the perforations in the above temps. Nov 22, 2014
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owen m: The vents do a good job keeping about 90 to 95 percent of the air from flowing in. But there is still a small gap in between the plastic fitting that holds the vent and actual boot itself. It really depends on your foot peg positioning and how your motorcycle puts your feet. I have adjustable rear sets on my Yamaha r1 so my feet are tucked close and somewhat behind me therefore I do not feel the wind as bad. But if I put my feet down to relax them while cruising or just stretch my legs I can start to feel a bit of wind slip through the crack between the boot and the plastic fitting. Nov 25, 2014
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Martin: I cannot comment on that level of cold, but they seem barely warm enough with normal merino wool running socks at 39 degrees in San diego. But again I do not even know what warm socks are, and am feel cold without sun and 70 deg temps. Nov 22, 2014
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A shopper asked: Is there an "air" version with perforations coming out soon? Jul 7, 2014
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Steve B: Air's are coming out now... Feb 3, 2015
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John C: Man the to events work phenomaninely !!!! Good air flow as is ! Great boot !!! Moves well , on/off in seconds super comfy once broken in !!! A must have for any serious Ryder!! Jul 7, 2014
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Logan E asked: Is the heel/sole short or tall? I'm used to riding in my work boots, so I was curious the height of the boots. May 15, 2014
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Gary W: I'd say average sole thickness that comes on a regular shoe. Probably less than your work boots. I just measured the MAG-1 and it's a 1 inch heel (bottom of heel to bottom of heel guard). It's a 1/2 inch from sole to bottom of heel. Enough to hook onto your peg. Overall height of boot is 13 1/4 inch, top to bottom, size 41. May 28, 2014
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Darrick S: Heel/Sole height are the same as other Sidi road race boots.. The heal is ~ 1.5 inches floor to rider heal in the boot with ~1/2 an inch floor to the ball of the rider's foot. May 16, 2014
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John H asked: Hello, I have the opposite concern of those wondering if there is enough room at the top for large calves. One person asks is there is room for his 18" calves.

I have very skinny calves - about 13 1/2", 14" from the floor. Can the Mag 1 boots be cinched down tightly enough to feel secure. I have a pair of Sidi Gore Tex Adventure touring boots (Size 47) and they fit perfectly, although I find them to be awfully heavy and bulky, both on the bike, and walking around.

I really like Sidi boots and tried a pair of Cobras, but even tighten at the top to the max, my calves moved too much to feel secure.

Also, several reviewers recommend going up a size. I've owned two pair of Sidis, and tried on the Cobras, and 47 nails my size in all three (I wear 12 1/2 D in New Balance 990 series running shoes and they are sized very precisely.) Should I really consider going up a size?

However, my bigger concern is if the tops can be adequately tightened for my skinny calves. Thanks much.

Athens, GA

These will be to ride a KTM 990SMT on a 7,000 trip in the Spring. Safety is still number 1, but comfort is a close second.
Jan 28, 2015
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Nicholas M: Hi john.

I will try and get you exact measurements if I get time. I wear the exact same size and style new balance shoe. When I speak about the size variation for the calf with these boots I explain it to people like this. The boot can handle a range variety of calls due to the design. As long as you aren't anorexic or bursting in the calf like the hulk these boots will work for you.

When I wear my dianese riding pants they add a huge amount of diameter to my calf. They fit snugly with ease.

When I wear just a pair of socks when riding in jeans (Jean leg on the outside of the boot) the boots ratchet down snugly to my ankle.

Either way I ride with these boots they are SUPER comfortable. The ratchet design really allows for increased user ability depending on what you are wearing.

The only issue I have with them as with any riding boot of this protective quality is walking any long distance or climbing stairs is different. This is a given though when you are wearing a boot that would protect your ankle in a crash.

Feb 4, 2015
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John C: Good day John ! Iv bought a pair of these last April im size 41 tho smallest they can get with fairly skinny legs an I can wear them without a suit , but still tuck over my suit perfect they vary a lot in calf adjustment an an over super amazing lightweight boot ! Highly recommended by this guy!! Feb 3, 2015
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John H: Thank you, Steve. I think I'll try white, to match the 2012 KTM. And they have to be substantially lighter than the Sidi Gore-Tex Adventure touring boots I now wear. I wish the weights of boots, and other products, were including routinely as parts of the descriptions. Feb 3, 2015
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S N: Yes. I am 6 3 and my calves are naturally higher, the tightening at the top is 2 way, you can adjust the plastic strap and also tighten the actual loops. The mid level adjuster is also very nice as sidi models seem to be too wide at mid level for my feet. Feb 6, 2015
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Steve B: These things can be cinched down pretty small. I can't imagine you'd be too small for them.

They're terrific boots....I'd order them and see.

You can always send them back...
Feb 3, 2015
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John H: Thank you, Nicholas. That's very helpful. Feb 5, 2015
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A shopper asked: Hi I have particularly large calf muscles (18" diameter) and find most boots uncomfortable due to the height. I ride a pair of vortice which even with the adjustment still cut into the calf with out giving full support in the lower leg shin area. I do enjoy these boots and find them comfortable use them for sports bike and touring other than the welts that appear at the end of the ride. What I need is a boot of this quality with the back that doesn't exceed 8inches high to allow movement in the calf without the pinching. Would the MAG 1 work or do I need to look elsewhere. No interested in shorty's, with the lack of lower leg support? Oct 2, 2014
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Mohamed K: This is specifically why I ordered these, because of the Adjustment in the Ankle area. As for the Upper Calf Muscle area, you can expand that to as much as you would like then ratchet it down to your liking.

I Tried the Vortice and MAG 1's and sent them back because of the extra space in the ankle area. These on the other hand had more adjustment points and allowed you to tune in the fit.

As for Flexibility, well, these dont flex much, they are a race boot for the track. You get a little bit of up and down, but nothing too crazy, it still feels tight to walk in, but Again I have only had them for 2 months, so mine may still break in some more.
Oct 2, 2014
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Daniel S: Measuring from the inside, it is 12 inches from the heel bed to the top of the boot, (rear side). The inside circumfrence at the top of the boot is 16 3/4" with the top closure engaged at the far limit of its range. I have worn my boots on hot track days here in TX and love them. The toe vents work and the enclosure system makes getting them on and off a breeze. The boots are very comfortable and I feel are worth every penny. Cheers! Oct 3, 2014
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Darrick S: They are a full race boot with good protection so does exceed the lower calf . However, I also have large calf muscles (17.5" diameter) and find the adjust-ability of the Mag-1 perfect. No issue and the most comfortable race boot (for me) on the market. Much better than the Vortice. That being said, I only ride on the track so I can't comment on how they would be on an all day ride where I wasn't moving a lot.. Oct 2, 2014
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John C: Well these boots are average height according to my last pair of alpines and I imagine foot size could alter the height two?, but the top "crank" keeps the lower leg well secured an ur foot in place super well an there is a great deal of upper leg adjustment, I'v got ur average leg tho, an love this light weight boot! Oct 2, 2014
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Fernando G: This model is great, very confortable and with the proper adjustments options to have support with confort at the same time; I tried several models before this one and you can tell the different; this model is one of the best options give it a try. Oct 8, 2014
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Steve B: I suggest u try them...you can leave the top open quite a bit with the design of these Oct 2, 2014
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A S asked: The video specifies that the Mag 1 is good for a 15" diameter at the top...Is the vortices the same diameter or larger? I have larger calves. Thanks in advance! Oct 27, 2014
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Darrick S: No, the Vortice fits tighter on the calves than the MAG-1. I've worn the Vortice for three seasons and they were much more fiddly to get on than the MAG-1, especially for those of us with big calves. (I have 17' calves at the largest point flexed). Spending the last season in MAG-1s, I can't see myself wearing anything else. Nov 11, 2014
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A S: Great to hear. I also have 17" diameter at full flex. I'm glad to hear these will work. Thanks! Nov 11, 2014
Steve B: I don't have the Vortices anymore so I can't compare...but the top of these opens pretty wide....measurer your calf around and call Revzilla for the "totally opened" circumference at the top of the boot and see if you will fit. Nov 11, 2014
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Jeffrey S: 15" diamter is huge. I have larger calves as well and have no issues w the Mag-1s. They are the most comfortable and responsive race boots I have used. Also durable, crashed twice in them. Nov 11, 2014
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A shopper asked: Hi all, does anyone know how do these new Mag-1 compare to the SIDI ST Air in terms of ease of in/out, comfort, protection and air flow? Oct 11, 2014
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Darryl M: I can't compare but having used for a month in warm weather can say feet get air from front vents ok and boot is really easy getting off - latches look intimidating at first but once you get on to them the boot also goes on quick. Comfort is pretty good, but I added an arch support due to personal quirk....sizing is spot on if you use European sizing. This boot is pretty flexible - lets me shift easily where a stiffer boot doesn't. That's why I got them. I've worn all day two days in a row at a track event with no issues. SIDI is good - worth the price. Oct 22, 2014
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Michael M: Just picked them up myself. Cannot compare to ST Air's. Can say they are VERY easy in/out, extremely comfortable and give great air flow (been riding them in 70-90 degree temps). As far as protection, thankfully haven't tested that aspect yet, though I feel quite confident in what they will offer when I do. Highly recommend them. (Was between these and Vortice for me and Mag 1's won hands down.

Hope it helps your decision.

Oct 11, 2014
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Steve B: You can buy these in Air now. Feb 3, 2015
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Michael M asked: The size of the foot is good but must have skinny ankles because doesn't feel like I can get it tight enough.. The foot moves around inside of boot. Any suggestions? Thanks Mar 15, 2015
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raul p: May be try some thicker socks Mar 15, 2015
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Michael M: Thanks Raul ... yeah tried that helps a little and even tried an insole which just made the toes to tight. But the ankle stills moves on the tightest setting thinking I might have to go with a different one and its a shame absolutely love them otherwise! Mar 15, 2015
raul p: Best of luck cheers Mar 15, 2015
A shopper asked: anyone can give me the height of the boots in 47 size?I have long calf and i like this pair but i don't know can it cover my calf nicely. Mar 11, 2015
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Daniel S: From heel bed (inside) to top of boot is 11.75 inches. Mar 11, 2015
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A shopper asked: I have a larger calf (in diameter) the video states that these are only good to 15' at the top. is the Vortice any wider at the top? Oct 27, 2014
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Nicholas M: I have a 17 inch calf (it's funny I just measured it to give you as accurate of an answer as I could) and I fit in them fine.

The only issue I sometimes come across is if you wear street riding pants especially leathers that go inside the boot it may be tight but still manageable.

The ratchet system has a lot of play in it.

Hope this helps.
Oct 28, 2014
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A shopper asked: In the specifications, a calf adjustment of up to 15 inches in circumference is mentioned, I was wondering what is the minimum size calf adjustment for, example, the US size 7.5 Mag-1 boot?

I am currently using the Spidi XPD boots that had the top Velcro closure system altered to fit my chicken legs. They are a great boot, but I am not 100% confident with the Velcro system, I worry that it might get caught on something during the event of an off and open up.

Thanks in advance.
Jul 25, 2014
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Robert S: I'm going to answer my own question here and say that, without a doubt, these are the best fitting boots I've ever owned! No worries on the calf fit, not only is it perfect, but it would appear that it could even go a bit smaller if it had to. Superb boot, very happy with this purchase. Jul 31, 2014
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Ari J asked: I currently have a set of Alpinestars Supertechs in size 48. Will I fit a Size 47 in these Mag-1s or will they be too small?

Thank you
Jul 31, 2014
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Mens and Womens Footwear

Footwear Conversion
EURO  US Mens US Womens
36 3-3.5 4.5-5
37 4-4.5 5.5-6
38 5-5.5 6.5-7
39 5.5-6 7-7.5
40 6.5-7 8-8.5
41 7-7.5 8.5-9
42 8-8.5 9.5-10
43 9-9.5 10.5-11
44 9.5-10 11-11.5
45 10.5-11 12-12.5
46 11-11.5 12.5-13
47 12-12.5
48 13-13.5
49 14
50 15

Sizing information is provided by the manufacturer and does not guarantee a perfect fit.

Click here to see the full SIDI Boots Size Chart
Product Style RevZilla Item # Manufacturer Product # Availability
Black / 7.5/41 941730 SIS-MA1-BKBK-41 In Stock: Ships within 24 hours
Black / 8.5/42 941731 SIS-MA1-BKBK-42 In Stock: Ships within 24 hours
Black / 9.5/43 941732 SIS-MA1-BKBK-43 In Stock: Ships within 24 hours
Black / 10/44 941733 SIS-MA1-BKBK-44 In Stock: Ships within 24 hours
Black / 11/45 941734 SIS-MA1-BKBK-45 In Stock: Ships within 24 hours
Black / 11.5/46 941735 SIS-MA1-BKBK-46 In Stock: Ships within 24 hours
Black / 12.5/47 941736 SIS-MA1-BKBK-47 In Stock: Ships within 24 hours
White/Black / 7.5/41 941737 SIS-MA1-WHBK-41 In Stock: Ships within 24 hours
White/Black / 8.5/42 941738 SIS-MA1-WHBK-42 Available: Requires 2-4 business days processing time prior to shipment.
White/Black / 9.5/43 941739 SIS-MA1-WHBK-43 In Stock: Ships within 24 hours
White/Black / 10/44 941740 SIS-MA1-WHBK-44 In Stock: Ships within 24 hours
White/Black / 11/45 941741 SIS-MA1-WHBK-45 In Stock: Ships within 24 hours
White/Black / 11.5/46 941742 SIS-MA1-WHBK-46 Available: Requires 2-4 business days processing time prior to shipment.
White/Black / 12.5/47 941743 SIS-MA1-WHBK-47 Available: Requires 2-4 business days processing time prior to shipment.
Black/Fluo Yellow / 7.5/41 1002018 SISMA1BKFY41 Available: Requires 2-4 business days processing time prior to shipment.
Black/Fluo Yellow / 8.5/42 1002019 SISMA1BKFY42 In Stock: Ships within 24 hours
Black/Fluo Yellow / 9.5/43 1002020 SISMA1BKFY43 Available: Requires 2-4 business days processing time prior to shipment.
Black/Fluo Yellow / 10/44 1002021 SISMA1BKFY44 Available: Requires 2-4 business days processing time prior to shipment.
Black/Fluo Yellow / 11/45 1002022 SISMA1BKFY45 Available: Requires 2-4 business days processing time prior to shipment.
Black/Fluo Yellow / 11.5/46 1002023 SISMA1BKFY46 Available: Requires 2-4 business days processing time prior to shipment.
Black/Fluo Yellow / 12.5/47 1002024 SISMA1BKFY47 Available: Requires 2-4 business days processing time prior to shipment.

The new kid is back in town. This is the Sidi Mag1 in my right hand, as you can see it, and the theme is flexibility, lightweight and streamlined in a brand new design for 2014. On the other side of the table, I have the classic Vortice and really the Vortice remains right at that same level, same price point but it's set up a little bit different compared to what they've done with the next iteration from the Mag1. Now, Sidi worked with Bautista, Cal Cruchlow, they worked with Andrea Dovizioso. And they worked with the GP-level riders and really found where they wanted to go with this new boot, outside of a dramatic restyle, was they wanted to shave weight from it and make it a little but more flexible for the rider.

So, each boot now is seven ounces lighter compared to a Vortice, what we saw the pros wearing previously. They've also done, you're going to see it right away, is they've internalized your vertebrae system. So, on this boot again it goes with the weight saver, you get this big, rigid structure all the way outside on the lateral side, on the medial side going all the way up to the Achilles, what they've done with this boot is they've actually used two aircraft-grade carbon-fiber supports running from bottom to top on both sides of the boot, but they're internal and they allow for a little bit more flexibility, a little bit more feel. And you can see the streamline of this boot, again, they shaved nearly a half a pound off of each one combined. And I have the black/white version of each one. So, again, from a positioning standpoint, you're Vortice probably still is a bit stiffer, a bit more bomb-proof, but the pros want something with a little more tactile response and feel.

Notice how they shaved down the heel cockpit here? You're getting halfway shock absorbing heel counter that on the inside is a much more low profile than what< we've seen previously. Again, going with that streamlined appearance. But a lot of the rest of the boot is very similar in its function, meaning performing at the highest level, full-speed, for MotoGP level crashes and catering to a pro-level rider around that $500 mark. Now, before I get into every change and every nuance, let's talk quickly about fitment. I believe this booth will be more comfortable for most riders. They've even made it more adjustable up here at the top. You're getting 15 inches of adjustable circumference around the top of the boot, that's brand new. They've also changed the way it interfaces with your calf.

The foot bed is going to remain relatively similar, and you'll still get that hardcore race sole from Sidi but you'll notice on the bottom that they've removed that piece that was replaceable, on the dual-compound sole. but again, looking at the arch and looking at the Achilles from a Fit standpoint, again removable arch inside of the boot but on top now you're going to get a bit more breathability and you have this area of elasticated nylons which has these big TPR's over the front of it and these TPR's along the back. Again for allowing,more flexibility.

Now, there's no hard start and stop from a hyper-extension, hyper-flection standpoint, but you do have those carbon-fiber rods that do run up and down the boot for that internal rigidity. Keep that in mind guys, and if you're concerned how it's going to rock, remember European sizes but again Sidi's been playing here in the U.S. long enough, will ship for free, so don't worry about it. You can always give us a shout if you're concerned about that fitment and remember, I want to hear your gut reaction. Click here, subscribe to us on our YouTube channel, RevZilla TV, leave your comments, your questions, and your feedback.

Now, let's dive back into the nitty-gritty and really work this Sidi Mag1 against the Vortice, front to back, top to bottom and highlight all the changes besides just the overall style as we go. And remember guys, the baby brother to both of these boots, which you really can't go wrong with, is the ST, which is just a different, it's around that $400 dollar mark, but if you're already making that investment, both these guys are just head and shoulders above that level of protection. Now, looking at the toe, you're going to instantly see a dual compound with a replaceable alloy slider here on the toe box. It's nylon with fiberglass reinforcement, reinforced toe as well, you have that similarly on both the Vortice and the Mag1. Notice a refined shift panel, recessed stitching, you're going to see it without and both of these boots are going to have micro-fiber, that techno-micro, which is synthetic leather all the way out. When you use synthetic leather versus natural leather, you eliminate all imperfections, keep that in mind.

Now, looking at the Techno-3, magnetic system. Big change here on the Mag-1versus the Vortice. Notice this is different now, instead of nylon mono-filament, now you're, using coated stainless steel. And the cool part about it is you have a release on both sides, versus one sided on these bad boys, and what happens is it actually the Techno3mag system, see that magnet right on the bottom there? Just kind of holds it in place; it doesn't go anywhere. It got rid of a lot of the fuss on this guys and they managed to use lighter weight, smaller stainless steel to keep it in.

So, if I completely undid this boot, right? I'm gong to snap my adjuster up, I'm going to give myself some slack, I'm completely undoing it, right, going all the way to the top of the boot, again allowing, it to release. Remember, 15 inches of circumference up here along the top. You're going to see it doesn't go anywhere, it stays in place, you just kind of pop it in. I put my foot back in there and I'm ratcheting it down . Notice how it slides right into place and again that magnet lines up there perfectly.

And you'll see how they use that larger area of TPR across the instep here to give you better coverage and make sure that this is going to stay hardcore and in place and hold up to abuse, because remember, look at all the screws in the outside here, screw, screw, screw, screw, screw, screw, you're going to have a lot of places that are replaceable within this boot. And just like the Vortice, these are heirloom products, they're not meant for one season, or even three. They're meant to really hold up and allow you to make that lighter weight investment of just replacing a slider or two and keep it running for you season after season after season, whether you're racing, whether you're crashing or whether you're just doing track days.

Now notice, as we move here into this hinged area, if you popped off the cap of this slider which is a medial or it's a lateral outside slider, you'd see a screw that holds this carbon-fiber structure in place, that run all up and down the inside and outside. Again, big departure from the vertebrae system on the back of the Sidi. And notice, we do have that heel counter on the back here, you're going to see there is an area of reflective. Moving back up, the shin plate is completely re-designed now. Lighter weight, smaller, out of harms way, and you notice if you come in here really tightly the whole interior of this boot the medial side is much flatter, much lower profile, meant to create a much more seamless area of contact with the inside of your faring or your bike in aggressive scenarios rather than having a raised point here, a raised point here.

Again, that was one of the big feedback pieces that came back from the Motor GP level. Now, you can see those both on the inside here and remember; low-profile in the inside of the heel as well because that area is going to be stopping right there where you have the area of the counter that is rubber-backed with that shock-absorbing zone. Notice, too, medial slider, and again, dual-carbon fiber struts up from there, down from there, keeping it in place again, limiting range of motion adding sturdiness, adding rigidity but again not getting in the way. And the nice part about this boot too is by allowing a little more flex, you actually give your knee a little bit more range of motion, you're actually giving yourself a little bit more room for escape if you do get into a situation where some of that torsion, or twisting is going to be relayed up to your knee.

Now, what I'm going to do here, I'm going to open this bad boy up from the inside out, done that a couple of times, show you how easy that is to pop this off just like that. And when I start to open it up you're going to see that the lining looks like the classic Sidi Cambrelle lining but it''s actually not. It's Cambrelle in the toe box and around the foot, but up here toward the ankle towards the calf it's actually going to be perforated nylon that has a little bit more thickness to it. It's actually more comfortable it has a much more a 3D effect to it, so what it's going to do is it's going to promote better air circulation, promote better wicking. It's actually going to be more comfortable overall and you can see all the way down into that bad boy how much that breaks. This is going to be very easy on and very easy off. You notice there's even a stretch panel right there for better range of motion. The other thing I want to call out is look at the back here along the top of the calf.

Now on the Vortice it goes all the way up, and you have another techno-micro adjuster or a Techno-3 adjuster right there You have it on the side there, you're eliminated one, you're saving some weight here but on the back you're going to notice they have that high point of TPU that goes up. They've given you another area of soft TPU that has some padding built into it and what that's going to allow you to do is make sure that your calf never get chaffed or cut up because this area of TP is never really going to break in and that's okay because it's meant to be supported. So they're giving you an area of soft plastic to interfere or to interface with your leg so you're not going to have any trouble there, and you can see the way that this is put together.

They didn't skip, but they shaved right where they could, they eliminated excess where they could and they simplified where they could and for me I'm a fan of that approach especially if it's going to offer more tactile response to the rider and again, being a little but more light weight, you're going to produce less fatigue over time with this boot which will be the Mag1 over the Vortice, especially if you're talking about 25 laps around the track. So remember the Vortice and the Mag1are really brother and sister products. One is not better, it depends on what you're looking for.

If you want ultimate bomb-proof, you go Vortice. If you want to sacrifice a hair on the stiffness and protection side, just a hair and get a little but more streamlined and light-weight and a little bit more response from a boot that's going to be a little less rigid, that's where you go Mag1, and again, we're seeing that trend at the pro level. Keep that in mind, guys. Still a bunch of sizes and a ton of colors for each one, you really can't go wrong and the baby brother for both of these guys is going to be the ST.