Log In / Register
0 Checkout
Alpinestars SMX Plus Gore-Tex Boots
  • Alpinestars SMX Plus Gore-Tex Boots

Please select a Size to check availability, or to add this item to your Shopping Cart or Wish List.


Select Size:

Size Chart
Savings (22%):

Select qty:

Please select a Size to view availability.
Add to Wish List

Video Reviews (2)

Alpinestars SMX Plus Gore-Tex Boots Videos

Alpinestars S-MX Plus Gore-Tex Boots


  • Contoured shin plate protector is injected with high modulus TPU for superior impact and abrasion resistance
  • Alpinestars unique Multi Link Control system provides advanced external protection and support for ankle articulation, limiting hyper-torsion, hyper-extension and hyper- flexion as well as providing Achilles and ankle impact protection
  • Dual density TPU toe slider, replaceable, with snap-in assembly
  • The new design provides more coverage towards the toe area
  • Micro adjustable ratchet buckle closure on the calf features a hidden strap for security
  • Alpinestars anatomical and replaceable countered EVA footbed provides arch support and forefoot pedal feeling

Alpinestars Men's Footwear Size Chart:

Use this chart for Euro-sized footwear
EU Size USA Size
36 3.5
37 4
38 5
39 6
40 6.5
41 7.5
42 8
43 9
44 9.5
45 10.5
46 11.5
47 12
48 12.5
49 13.5
50 14
Use this chart for USA-sized footwear
USASize  EU Size
5 36
5.5 37
6 37.5
6.5 38
7 38.5
7.5 39
8 40
8.5 40.5
9 41
9.5 42
10 42.5
10.5 43
11 43.5
11.5 44
12 45.5
12.5 46
13 47
13.5 47.5
14 48

BOOT SIZING NOTES: In RevZilla's experience we have found the EUR->US sizing conversions as presented here to be slightly off. Below is RevZilla's recommendation for Men's Boots. 

EU Size

USA Size
42 8
43 9-9.5
44 10-10.5
45 11

As always, this size chart is only a guide and provides no guarantees of a perfect fit.

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

Click here to see the full Alpinestars Size Chart
Product Style RevZilla Item # Manufacturer Product # Availability
Black / 36 818901 2331012-155-36/34020341 Available: Expect 3-4 business days lead time prior to shipment
Black / 37 818902 2331012-155-37/34020342 Available: Expect 3-4 business days lead time prior to shipment
Black / 38 818903 2331012-155-38/34020343 Available: Expect 3-4 business days lead time prior to shipment
Black / 39 818904 2331012-155-39/34020344 Available: Expect 3-4 business days lead time prior to shipment
Black / 40 818905 2331012-155-40/34020345 Available: Expect 3-4 business days lead time prior to shipment
Black / 41 818906 2331012-155-41/34020346 In Stock: Ships within 24 hours
Black / 42 818907 2331012-155-42/34020347 In Stock: Ships within 24 hours
Black / 43 818908 2331012-155-43/34020348 In Stock: Ships within 24 hours
Black / 44 818909 2331012-155-44/34020349 Available: Expect 1-2 business days lead time prior to shipment
Black / 45 818910 2331012-155-45/34020350 In Stock: Ships within 24 hours
Black / 46 818911 2331012-155-46/34020351 Available: Expect 1-2 business days lead time prior to shipment
Black / 47 818912 2331012-155-47/34020352 Available: Expect 1-2 business days lead time prior to shipment
Black / 48 818913 2331012-155-48/34020353 Available: Expect 1-2 business days lead time prior to shipment


Orders $39.99 and over qualify for our fast free shipping offer. Click Here for FREE Shipping Terms and Conditions.

Please see our International Orders page for orders shipping outside the US.

We show real-time availability on this product page when you select the size/color item you want.  Most items will ship the same business day an order is placed,however if an item requires additional processing time a message will be shown indicating such.

See our full Shipping Policy for further details.


If your order arrives and it is not right, we will we'll fix it, NO NONSENSE, we promise.

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.

See our full Return Policy for all of the pertinent details.

Write a Product Review for a chance to win our monthly $100 giveaways.
Alpinestars SMX Plus Gore-Tex Boots 4.1 5 7 7
Disappointed, did not meet my expectations I know this review is counter to all of the other reviews for the boot; in fact it was all of the other reviews that helped convince me to order these, however.... I'm shipping these back to Revzilla and I will try something else. I had very high expectations when the shipment arrived at my house, however I was disappointing because I expected these boots to be more rugged and of a higher quality overall, especially at the $450 price point. I ride a Ducati Monster and do a fair amount of miles on rides that include highway, and secondary roads. So over the past year I've been seeking to upgrade my protective gear to account for the fact that I am spending long hours over many miles on my bike and want to avoid a foot crush injury if I happen to go down. Currently I own a pair of AXO Freedom GT Waterproof boots, and I have rated these a fantastic boot, at a great low price; I love them. The AXO boots have good protection however, I felt I could find something that offered a bit more heel and ankle protection, and maybe some torsion resistance to prevent severe injury. The Aplinestars MX Plus I do not consider to be better than my AXO which provide stiffer toe box and shin protection compared to the Alpinestars. And, the AXO maybe just as good for heel and ankle protection compared to the Alpinestars while being less than half the price; I paid just $100 for my AXO on a discounted sale. I suspect that Alpinestar paid the Gortex royalty fee and ultimately forced them to skimp on the rest of the boot to manage price point. What I did not like about the MX Plus: - The ratchet style clasp is extremely flimsy, almost useless. - toe box does not seem protective enough - ankle protection is skimpy and is easily crushed - boot can be twisted with little energy - shin protection is thin and crushes way too easily - Overall plastic seems to be of low protective quality What I liked: - Gortex lined - True to size fit Side by Side, I'll stick to my AXO Freedom GT WP August 22, 2015
Good Boot I purchased these boots to update my aging and discontinued Alpinestar Supertech Tour boots. I will often give up comfort to gain protection and had initially narrowed my choices down to the Daytona Road Stars and the Alpinestar Toucan boots. I found the Daytona's to be less protective and comfortable than my Dianese TRQ Tour boots which I use for commuting and though I wanted to love the Toucan boots they really were too bulky for my street bikes. The limited feel and space for shifting with the large size of the Toucan caused me to pass on the Toucan. I gave these SMX Plus Gore Tex a try and they provided a good blend of protection for the ankles, foot and shin while maintaining good feeling with the shifter and brake pedal. These are boots I'll be keeping for the next few years. The boots are expensive and are not beautiful but the number of boots which are really waterproof, have good ankle, foot and shin protection which are not massive boots more appropriate for off road adventure riding are few and far between. Most of the comfortable street boots are comfortable because they give up some protection. For me these boots gave up the least amount of protection while remaining comfortable enough to feel the foot controls of the bike. March 31, 2015
Great boots Very happy with these boots. The fit on my size 11's is great - roomy in the toe box and with the lace-up system they snug right up without feeling tight. The lining is very soft on the front of the ankle and the whole boot is really comfortable on the bike. I'm recovering from a foot injury (sesamoiditis) and these boots are a big step up in comfort from my old riding boots. The sole is rigid enough to prevent excessive pressure in the arch of my foot but they're also flexible enough to not hinder operating the controls. I'm very impressed with these boots and glad to have spent the money - they're well worth it. July 28, 2014
Great boot I commute in these boots and wear them off the bike as well. Although I have no plans to go to the track any time soon, I still want a lot of protection on the street. Perhaps a bit overkill for commuting, protective gear is very cheap insurance in comparison to the pain, lost time, and medical costs from an injury. I have not tested the Gore-Tex in a significant downpour but I have stayed dry in a few drizzly days. I am impressed at how much the Gore-Tex allows my feet to breathe preventing sweaty clamminess, even when off the bike. I don't notice significant airflow as one might expect in a heavily vented boot but there is enough to keep me perfectly comfortable. These boots are also quite comfortable while walking around. I imagine these are as close to tennis shoe level comfort that you can get in a track boot. However, I plan on changing into street shoes from now on as the boot sole is not made for extended walking and is starting to show some wear. I got the squeak after walking around for a day but a few drops of silicone spray seems to have fixed that. The speed lacing system is easy to use and provides a glove-like fit. I have not had any problems with the laces cutting through the eyelets in the liner, but I don't pull very hard on the laces. You don't need much to snug them up so it shouldn't be a problem unless you're yanking on them. I originally purchased the Dainese TRQ-Tour Gore-Tex boots and did not care for them at all. The footbed was uniform but too snug for me. However, from the ankle up, the boot was very loose and the top of the boot dug into my shin. Having a background in podiatry I cannot see how the TRQ-Tour would provide any meaningful ankle joint protection. The SMX Plus boots are comfortable, appear to provide great protection, and are race stylish. The only downside is the price but then again, it's a lot less than foot surgery. May 28, 2014
Perfect boot for protection, comfort, and waterproofness If you want a comfortable boot you can hike around in but want great protection this is it. Add on that the gortex breathes so no sweaty feet and it stays waterproof. I love these boots. Mine have been tested in heat and cold and in pouring rain. They run just a size big. I'm a 42 normally and got a 41 in these. Revzilla allows returns so get 2 sizes and return what doesn't fit. BMW R1200R September 13, 2013
Usual excellent quality from A'Stars Love the "custom" fit that the speed lace system provides. The boots have a good feel for the pegs without letting them dig into your feet. These replaced a set of SIDI Vertigo Rain boots that didn't provide enough room to move my toes up and down, thus causing some discomfort, and didn't hold my foot in place because the ankle area was too loose. May 6, 2013
Boot fits well. Boot fits very well. A bit snug near the front of the foot, however I do have quite wide feet. Bought these boots in the winter so have yet to try them. They look great and am looking forward to giving them a go through the mountains. January 14, 2013
1-7 of 7
Use our Product Q&A for a chance to win our monthly $100 giveaways.

Have a functionality, fit, or otherwise product-specific question about the Alpinestars SMX Plus Gore-Tex Boots? Ask it here! If you have a customer service or shipping question, please direct it to our Customer Service department.

Alpinestars SMX Plus Gore-Tex Boots
Already Asked: 6 Questions, 13 Answers
Sort by:
RevZilla Store asked: Why did you choose this?
Aaron H: These look like they provide great protection and are focused on sporty riding, all while also being weather resistant. Oct 26, 2015
Nathan M: My previous SM-X Goretex lasted me over 10 years. Jan 17, 2015
Rasheed H: waterproofness and I love their Supertech R version. These SMX don't disappoint either. May 16, 2014
Eric L: Maximum crash protection and waterproofing (rain boot covers are a pain). Feb 2, 2014
Rob B: because they are A/stars so I know that the quality is high & they are Goretex lined & this is a name I know I can trust as being Truly WaterPROOF Dec 2, 2013
Gino C asked: Can the calf section be adjusted wide enough to accommodate large calves? I have 17 inch calves and this has been an issue with some other brands, but I've never tried Alpinestars or this particular boot yet. Apr 27, 2015
Answer this · Send to friends Good question? Yes (0) No (0)
Rob B: Hi Gino,
I also have unusually large calf's & haven't found a problem with the boots fitting in this respect. There is enough adjustment to suit mu fat low legs. I must say that they are the best & most comfortable boots ive ever had & Ive been riding road bikes for over 40 years, yes I'm an ole bloke with fat lower legs.
May 6, 2015
Reply to Rob Good answer? Yes (1) No (0)
Gino C: Found the answer on the YouTube channel. Depends on the boot size, but size 10 US should fit my fat, luscious calves. May 6, 2015
Reply to Gino Good answer? Yes (0) No (0)
A shopper asked: I am riding Naked bike daily (Honda 600 CB600 F Hornet) and sometimes ? ride in a track (Honda 600RR or 1000RR) .
I need new boots and ? don't know which boot will be the best choice for me between Sidi Vortice, Alpinestars SMX Plus Gore-Tex and Alpinestars Supertech R?
Important things for me are;
1.Protection 2.Daily use comfort while walking 3.Durability (Sidi has replacable parts and in my opinion it is big plus for example)
Please help
Nov 13, 2013
Answer this · Send to friends Good question? Yes (0) No (0)
Ryan K: Well, I've only ever owned alpinestar boots so I can't venture an opinion on the others. I ride a triumph daytona 675.

The SMX plus are absolutely fantastic. They fit great and and offer great protection. Also, in the rain they are guaranteed to keep your feet dry. I've ridden through a couple of rainstorms since I got them and they were true to their word.

I have no track near me but I do get out to the mountains a couple times a year to rip hard. The boots are easy to move around in and I am confident in their protection. They are built very sturdy.

My feet never got uncomfortable while walking or while riding long stints.

I highly recommend these boots to you sir. Hope I was able to help.
Nov 17, 2013
Reply to Ryan Good answer? Yes (1) No (0)
Paul H: I replaced a pair of SIDI's that fit kinda funky and like these much better. I've owned several pair of SIDIs and A-Stars and these are the most comfortable. I like the inner speed lace set up and they are definitely waterproof. Nov 13, 2013
Reply to Paul Good answer? Yes (1) No (0)
Patrick R asked: Is this boot the 2013 model of the SMX Plus boot except in Goretex, or is it the earlier model SMX Plus in Goretex? Thanks Sep 12, 2013
Answer this · Send to friends Good question? Yes (0) No (0)
Paul H: It's the current boot. Just with GoreTex added. I love mine. Very comfortable. Sep 18, 2013
Reply to Paul Good answer? Yes (3) No (0)
Paula C: Hi Patrick,
They sent me your question as a recent purchaser of this boot. I have no idea if they changed the boot for 2013 but I can tell you its a great boot. After riding the Alps in the rain in another waterproof boot that failed; I came back and got these. I just returned from another rainy trip and these worked great. Comfortable enough to hike around in without sweaty hot feet, then very waterproof in the rain. They have tons of protection without being too stiff. The lace up liner makes the fit perfect. I'm a female rider but these men's boots are more protective than women's.
BMW R1200R
Suzuki GSXR 750
Sep 13, 2013
Reply to Paula Good answer? Yes (0) No (0)
A shopper asked: Hi! I have the SMX-5 waterproof boots at the moment. Are the sizes of those two boots (SMX-5 and SMX-5plus) compareable? I tried on the SMX-5 plus in 40 in the shop but nobody stocks the waterproof version and from memory the waterproof boots seemed to be a bit more tide.


Nov 25, 2013
Answer this · Send to friends Good question? Yes (0) No (0)
Solon C: The waterproof boots are slightly tighter than the non-waterproof SMX-5s. When I tried the waterproof ones on in a store I had to go one size larger. With that said however, keep in mind that overtime when the padding gets broken in the boot will feel LESS snug, kind of like how a new running shoe feels initially versus one that has been actively worn or a while. Jan 21, 2014
Reply to Solon Good answer? Yes (0) No (0)
A shopper asked: If it is the same boot as the regular SM-X plug a Gore-Tex membrane, is the main zipper waterproof? Dec 18, 2012
Answer this · Send to friends Good question? Yes (0) No (0)
RevZilla: The Alpinestars S-MX Plus Gore-Tex Boots have fixed internal booties that contain the Gore-Tex membranes. The booties go as high up as the zippers. The zippers are not water proof but the internal booties are. Dec 18, 2012
Reply to RevZilla Good answer? Yes (0) No (0)