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SIDI Fusion Air Boots
  • SIDI Fusion Air Boots

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$195.00 - $220.00
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Video Review

SIDI Fusion Air Boots Videos

SIDI Fusion Air Boots

  • Fully perforated for summer riding
  • Vertebra system Achilles and rear calf protection panel.
  • Replaceable nylon toe scuff pad.
  • Replaceable outer ankle protective cap.
  • Nylon shin deflector plate.
  • Fully encapsulated heel cup.
  • DuPont polymer toe shift pad.
  • An elastic panel adjacent to the entry zipper allows a bind free zip and improved fit.
  • Removable arch support.
  • Double stitched in all high stress areas.
  • Zipper and VELCRO® brand closures closure system.
  • Lorica outer construction.
  • Perforated Teflon treated nylon lining.

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 / 4.5/37 753811 2000000080079 Available: Requires 2-4 business days lead time prior to shipment.
Black / 5.5/38 753812 2000000080086 In Stock: Ships within 24 hours
Black / 6/39 753813 2000000080093 Available: Requires 2-4 business days lead time prior to shipment.
Black / 7.5/41 753815 2000000080116 In Stock: Ships within 24 hours
Black / 8.5/42 753816 2000000078472 Available: Requires 2-4 business days lead time prior to shipment.
Black / 9.5/43 753817 2000000080123 Available: Requires 2-4 business days lead time prior to shipment.
Black / 10/44 753818 2000000080130 In Stock: Ships within 24 hours
Black / 11/45 753819 2000000080147 Available: Requires 2-4 business days lead time prior to shipment.
Black / 11.5/46 753820 2000000080154 Available: Requires 2-4 business days lead time prior to shipment.
Black / 12.5/47 753821 2000000080161 In Stock: Ships within 24 hours
Black / 13/48 753822 2000000080178 Available: Requires 2-4 business days lead time prior to shipment.


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Doesn't fit or just not happy with it? You can return any new, unused and unaltered item within 30 business days of delivery receipt of your item. We will issue a full refund to your original payment method.

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SIDI Fusion Air Boots 4.5 5 35 35
Minimal ventilation compared to a short boot I finally upgraded to a full-length boot, after commuting for years with my old Sidi short boots, which are similar to the current Blade model. I went with the Fusion Air, expecting good ventilation, but it's very minimal. Most of this is due to it being a full-length boot. It really should have some sort of adjustable vent, as it's not offering the kind of comfort I was hoping for. I am a size 11, but since my 1/2 boots were always a bit too tight I went with a size 11.5. They're a little loose but, since the soles are so thin, I added one of those gel foot pads inside. It has a good amount of velcro to allow me to cinch it up a little tighter when I wear my pants over the boots. It does have a lot of protection, and are still looking like new after an entire summer of commuting, except for the plastic around the ankle, which gets scuffed up rather easily. October 4, 2015
Great boot, met my expectations. I wanted a good, stylish boot for my 100 mile daily commute. My feet are always hot so I wanted a ventilated boot and this one fit the bill. It doesn't vent as much as I'd like but I think the lower fairing on my Concours 14 is blocking most of the wind. If I move my foot away from the bike I can feel the air coming in. The boots have held up well over the last several months with no visible signs of wear and the zipper is still working like new. I'm pleased with the boots, Sidi makes good gear and I'll buy more of their products in the future. September 14, 2015
Good summer boot Excellent air flow. They do run small. Style is is excellent and hot days are easier to enjoy. August 10, 2015
Not Exactly "Airy" This is my 3rd pair of Sidi boots. The 1st two pair, which were previous models of this one, lasted about 10 yrs each. The 1st pair succumbed to crash damage, the 2nd pair still going with new soles. Same excellent Sidi quality and fit. The toe box is a bit tighter on these compared to my previous pair of the same size 47. They are less comfortable to walk in due to this – I probably should have went with the next size. To help break these in I sprayed them with Lexol leather conditioner, and it helped. Due to the Achilles protection plate in back these boots are a bit stiffer and took longer to break in compared to the previous pair. I’m a bit disappointed in the “Air” part of these boots. They don’t flow as much as expected. After standing around taking a break, when I start back down the road, if I stick my toes out in the breeze with heels at the ends of the pegs, I can feel some cooling. The cooling goes away with my feet in the normal riding position. This is true on all 3 of my bikes – 1200 Bandit, SV1000, V-Strom 1000. Between the engine pushing hot air around the boots and possibly the boots not flowing much air with toes pointed forward, there isn’t much difference between these and my old solid material boots. When riding in cool weather #50’s#, my feet were fine when in the normal riding position. Stuck out in the breeze they cooled right off. The “Air” boots definitely let the rain right in, though. My old solid material one’s took a while before soaking through, but not these. I like the Fusion boots, but I’m not sure the limited cooling provided by the air version is worth it vs the instant wet socks and feet. June 28, 2015
SIDI Fusion Air - Black - 10US / 44Euro I bought these shoes as an upgrade to my previous basic SIDI Gas riding shoes. They're a huge step up in protection compared to the Gas. These offer all around foot protection including shin protection, in addition to ankle protection, along-with replaceable toe-sliders. I haven't had much riding time in these so they're still breaking in but they aren't very comfortable to walk around in yet (then again, they aren't supposed to be walking boots). They do run a tiny bit smaller so the fit is snugger than I would have liked it to be, especially in the toe area (I don't think you need to up-size). I prefer to have more room, which I believe the competing TCX S-Sportour Boots offer. I have to see how my feet hold up over a long ride. Also, I don't think there's much room in there to add a comfortable "Dr. Scholl's" type insert Overall these are excellent riding boots though I wonder whether they will be practical as commuter boots... May 20, 2015
Light and airy Lightweight and easier to walk around in compared to a full fledged racing boot. Fit is a little small so just wear thin socks. March 2, 2015
Good Boots for the Price While shopping for a pair of boots, I went with these because of looks, prices, protection and safety. It's everything I expected. Fitment was no issue, just make sure you go by the video review. I actually these boots for an entire eight hours while working on my feet the entire time, and had no issues. July 21, 2014
Excellent, As Always, From Sidi Just did a 2700 mile tour with these over seven days and had NO foot discomfort. They move a good amount of air, they're lightweight and protection is adequate. They fit true to size for me. July 14, 2014
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Have a functionality, fit, or otherwise product-specific question about the SIDI Fusion Air Boots? Ask it here! If you have a customer service or shipping question, please direct it to our Customer Service department.

SIDI Fusion Air Boots
Already Asked: 11 Questions, 35 Answers
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RevZilla Store asked: Why did you choose this?
michael b: I purchased these boots to replace a pair that were bought in 2000. Same brand, different style. But this brand is incredible. Lasted fifteen years. Jul 24, 2015
Mark H: Returned. Jun 16, 2015
Douglas W F: More air flow May 21, 2015
Eileen C: These are the boots that my son decided on - look, light weight, and ventilation. Mar 5, 2015
Devin S: good protection with air flow Sep 25, 2014
John P: Nice tall, stiff street boot Jun 27, 2014
Chuck F: Great boots, light and comfortable. Passes plenty of air keeping my feet cool in hot weather while still offering good protection. May 13, 2014
Timothy T: I also have a pair of Sidi Adventure Gortex boots that are too hot in the summer. I always wear Sidi because of the quality and fit. I have a narrow foot and Sidi fits me great. Apr 6, 2014
Charles B: Good Protection and nice looking while not being too hardcore as im only a learner Apr 4, 2014
James M: I hope these will breathe well and keep my feet cool and dry. Apr 4, 2014
Steve O: SIDI has always had a good reputation for making quality boots, and I thought that these look like what I need for my aggressive-commute to work on my sportbike. Dec 12, 2013
L A: I've generally wore Timberland boots not realizing how unsafe it has been not to have riding boots. Great bang for the buck. Aug 16, 2013
Claude V: These boots are the best quality. They saved my ankle and chin bone from a direct hit by a car on June 21, 2013. Thanks to the quality of these boots, I have no broken bones. Aug 14, 2013
Matthew H asked: I'm usually a spot on 8 in most shoes and sneakers, this boot list 7.5 & 8.5? I'm definitely afraid of the 7.5 but don't want the boot to be loose. I have a relatively narrow foot. So 7.5 or 8.5? Apr 15, 2015
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Matthew H: Thanks for the help, a bit contradictory? Anyway, I've shifted gears and am now considering alpinestars. Those come in an 8. Also see the store is in Philadelphia, just might have to take a road trip....thanks again Apr 16, 2015
Reply to Matthew Good answer? Yes (0) No (0)
Daniel W: They are pretty much on! Maybe a 8 will be like a 8.25 to 8.5 in these. I would buy them in your size. They do take a long time to break in....don't worry! They are great boots for the money! Apr 15, 2015
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Christopher T: You'll definitely want the 7.5. I wear a 12 in shoes and picked up the 11.5 boits. Hope that helps, you'll love them! Apr 16, 2015
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DANIEL M: These run a bit small. Get the 8.5 Apr 15, 2015
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A shopper asked: How do the SIDI Fusion AIRs compare to the SIDI Clever Airs? Is one lighter than the other? It looks like the Fusion has more race inspired protection elements, but maybe that makes them heavier and they have less air flow? I'm looking for a lighter weight boot that breathes well for shorter rides and destinations to the city. I have another pair of boots I like for longer rides and more exposure to the elements. But I'm looking for something that does better in hotter weather. Sep 21, 2013
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Troy S: The fusion air is a very, very light boot compared to what I came from. In fact, it is so light I sometimes worry about the protection factor in a crash. Most of the side is very soft. It is just a thin piece of material covering your foot. I believe that it would easily puncture from an object on the road in the event of a crash. other than that the airflow is great, and the boots are very comfortable.

I can't compare them to the clever air, but these have been great so far.
Sep 25, 2013
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Scott L: I haven't seen the Clever's in person, but I found the Fushions to be surprisingly cool considering I was riding in DC area heat and humidity. The Fusions have more protection, which is why I was interested in them in the first place. They have saved my foot from getting crushed once already. Sep 25, 2013
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Claude V: I love my SIDI Fusion AIRs. I feel the cool air on my socks. These boots saved my leg from amputation when on July 21, 2013 a car did not make a stop and hit me broadside on my left leg. The leather left a print on the bike but I had no broken tibia.
Claude Vachon
Oct 31, 2013
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A shopper asked: I typically wear size 8 in Nike running shoes (Nike Free Runs, Nike Lunaracer) and size 6 in Converse Chuck Taylors. Would you guys recommend these boots in size 41 or 42? Sep 6, 2013
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Jaime M: I typically wear Nike 9 1/2 sneakers and bought a size 42. They fit a little snug but I prefer this fit to a looser fit since I have more control. I would recommend you try a size 40 or 41 Sep 11, 2013
Reply to Jaime Good answer? Yes (0) No (0)
Eugene R: I usually wear 8.5 in Nikes and I have the boots in size 42 and they fit perfectly. Revzilla has an excellent exchange policy if they don't fit exactly right on the first try. Sep 11, 2013
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Dale L: I felt mine ran a little on the small side. You may want to order one size uo from what you normally wear. Sep 12, 2013
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Routh S asked: After watching the video regarding the product...
I have few questions-
1. What is the difference between Fusion Air and Fusion boots? (key points will do)
2. do Fusion come with toe sliders?
3. Can we attach toe sliders to Fusion Water proof boots?
4. do we get titanium or metal toe sliders for sidi fusion boots?

Thank you.
Jul 30, 2014
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Blake K: 1. The Fusion Air boots are perforated leather which makes these boot awesome for warm weather riding.

2. The Fusion Air boots have a removable toe slider.

4. I have looked for an upgraded toe slider for the Fusion boots and to my knowledge they do not make one. You can, however, purchase a standard replacement slider.
Jul 30, 2014
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DANIEL M: The Fusion Air are perforated to allow some airflow. The Fusion and Fusion Air have hard plastic toe sliders. The Fusion Rain do not have sliders and I don't think they have any mounting points for them. Jul 30, 2014
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Routh S asked: As toe sliders are replaceable. Is there any option available to replace the toe sliders with titanium toe sliders??? Jul 9, 2014
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Peter H: The toe sliders are replaceable. They're held on by two screws. I don't know if titanium ones are available. Jul 9, 2014
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Routh S: Thanks Peter... Jul 10, 2014
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A shopper asked: My feet are wide at the toe; an "E"
Would this boot accommodate that ?
Jun 14, 2014
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MARK B: I''m not sure of the 'E' wildness range but they're not a wide fitting normally. That said they're better I think compared to Alpinestars and are sizing accurate. If in doubt go a size bigger to help the width i'd suggest... Great quality and value idea for warmer climates. Go for it! Jun 14, 2014
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Dale L: I always wear a size 9. If I ordered again I would order a 10 in this boot.
They run small. You may want to try these on first somewhere before you buy.
Jun 15, 2014
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A shopper asked: often wear jeans (or slacks) to the office. Will these go over that, or have to be tucked in. Aug 11, 2012
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Matt S: My ixon jeans fit over but are tighter than with my previous boots (Forma Revenge) due to the more prominate shin protection. I think the slacks may need to be tucked... Unless they're flares... Please tell they're not flares?!? ;•) Aug 13, 2012
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RevZilla: This will depend on how wide your jeans are. If you are wearing skinny jeans you will have to tuck them in; if you wear baggy jeans, they will go over the boots without any problem. Aug 14, 2012
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A shopper asked: What is the difference between these boots and the Fusion Boots other than the perforation? How are these protected in the rain? Apr 30, 2011
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Chris K: There are three Fusion boots currently:

The Fusion Air, the Fusion Rain and the regular Fusion.

The only one that is waterproof is the Fusion Rain, due to the addition of a waterproof liner. The standard fusion does not have any particular advantages one way or the other, and then the Fusion Air is perforated (therefore definitely not waterproof) in order to flow more air in hot weather conditions. Hope this helps!
May 3, 2011
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SupersportRider: These boots are more protection. Much more. They have the Achilles protector and ankle protectors. If I were to low-side and end up with the bike on top of my foot, there's no question I would want to be wearing STs and not Fusions.

As for the rain, these boots are perforated. Do not expect to have dry feet if you wear these in the rain. Buy a pair of Goretex-lined boots for rainy days or you will regret it.
May 4, 2011
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A shopper asked: Can someone tell me how much these boots weigh? Jun 24, 2012
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RevZilla: We only had a size 12.5/47 available for us to weigh, and one boot came in at 1 pound and 10.6 ounces. Jun 26, 2012
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A shopper asked: What is the circumference of the opening? I have a very wide/thick calf. Oct 19, 2011
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Chris K: The height of these boots is 11" and the circumference of the opening is 15". Oct 20, 2011
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