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Alpinestars S-MX 5 Boot Red/White / 46 [Blemished]

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Note: This item has cosmetic damage which may include, but is not limited to scuffs, scratches, stains or chips. The damage affects the aesthetics but not the function of the item.

Alpinestars S-MX 5 Boot

The S-MX 5 has been created as a performance road and track boot, incorporating the latest technical footwear design and material know-how. Following on from the other performance boots in the Alpinestars range, the S-MX 5 is notable for its comfort, hugging fit, safety performance and ease of adjustability.


  • Durable, high-tech micro-fiber upper construction offering a high level of flexibility
  • Double injected PU shields the shin, ankle, calf, toe and heel from impact while minimizing abrasion
  • Inner protection is given by a double injected panel connected to the heel counter, hidden beneath the outer shell and running up the outer ankle
  • Quick drying polyamide lining is laminated with open cell foam and high density contoured padding to absorb shocks to the foot area
  • CE certified
  • Innovative air vents at the ankle, heel and forefoot are covered with a specially designed mesh to provide unmatched levels of rider comfort
  • Large ‘throat’ profile instep and Achilles flex bellows for superior flex and comfort
  • MTP mesh liner and anatomical, removable, PU Foam foot bed keeps the foot cool and comfortable
  • A fully vented version is also available in Black
  • Innovative inner (medial) side entry opening/closure system that features an elastic mounted zipper with an extra wide Velcro® flap, to give a precise, comfortable fit and wide opening aperture for ease of access
  • Highly ergonomic, lasting for ultra precise fit
  • Exclusive compound rubber sole features structured shank reinforcement for added support to the arch area
  • Interchangeable bi-injected PU toe slider with snap-in assembly

Alpinestars Men's Footwear Sizing:

Sizing Notes!

In RevZilla's experience, we have found the EU-->USA sizing conversions as presented here to be slightly off. RevZilla's recommendation for Alpinestar's Men's Footwear: 43: 9-9.5 44: 10-10.5 45: 11

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

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

How To Measure

FT Feet What size shoe do you wear?
Product Style RevZilla Item # Manufacturer Product # Availability
Red/White / 46 948192 222309-32-46 Only 1 Left: Ships next business day


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Alpinestars S-MX 5 Boots 4.7 5 55 55
Alpinestars SMX love these boots, super comfortable and easy to put on. from road racing to taking a long ride on the weekend they will do both. highly recommend for any type rider needing protection but also wanting a comfortable boots June 11, 2014
quality boot These live up to expectations for an Alpinestars product. Good quality construction, decent styling. The most important fact to mention is the fit. I have a slightly wide foot, and have suffered Morton's Neuroma in both feet so I can not tolerate having the metatarsals compressed. Old fashioned leather boots stretch, but modern Lorica/plastic boots are not going to mold to your feet. Italian boot makers make some of the best motorcycle boots out there, but sadly they do so using a skinny Italian last. Sidi and Gaerne are simply too narrow for me. These SMX5s are typical for Alpinestars: the forefoot is just barely wide enough, length is right, but heel cup and instep are sloppy & loose fitting. This has been the case for me in the previous two sets of Alpinestars boots I've had as well. The only boot I've tried which was wider was the Coretech Latigo, but those are grossly inferior. The ventilation in the SMX5 is not all that substantial, and I've had a strange experience where the instep hangs up on my footpeg as I move the left foot to shift. Still, I like these boots. I'd definitely recommend them for someone who wants something a little less armored than a race boot, but still protective. They go under jeans, and don't have articulated plastic armor that creaks when you walk. March 17, 2014
Great boot One of the best boots out there. I strongly recommend these boots! They fit great and are super comfortable. February 7, 2014
Ahhh yeahhhhhhhhh Finally got myself a decent pair of riding boots. I've been looking around for awhile now. I was tempted to go with the MX-2s but thought for the price difference why not going with something more protective. Still breaking mine in at the moment but looking forward to using them this summer. January 21, 2014
Very Comfortable and Good Quality I really love the style of this boot. I've had these boots for about a year and a half and I have worn off the fronts of the toe due to dragging them on the ground. These boots have really held up and are VERY comfortable. They run pretty true to size. I wear a size 13 shoe and I ordered a 12.5 and they fit pretty good. I am 6'1" and the boots sit about 4" below my knees. Airflow could be better, but it isn't bad. I plan on getting another pair of these. December 13, 2013
Fit like a glove Wavered on the S-MX 2 and 5. Decided with the full boot so my shin is protected. Very comfortable on my shin. Took a few days to brake in. Fits true to size though have only worn coolmax socks with them. Love how it doesn't bunch my toes. Very comfortable to walk in even with the toe box and ankle being rigid. Breathes great and not too bad just walking around. Love the slides, amazing slip free sole, and the extra guards on the ankle and shin. Very responsive while riding / shifting; feel everything I do. December 8, 2013
Great Protection So far I've had these boots for about 1 1/2 years and they are still my everyday boot. Personally I think they run a bit on the snug side as I originally ordered a EUR 48(13 US) as that's my normal shoe size, but returned for one size smaller and they fit great, and revzilla's customer service was awesome the whole way through. Break in was fairly quick, and the soles are comfortable enough to walk around in and not look like you just stepped off the ski slopes. With that said the soles seem to wear fairly quickly, especially my left foot which is the foot that's always down when at a stop. I was a little worried about the Velcro becoming weak over time from constantly fastening and un-fastening the Velcro but to my surprise it is still holding strong. I'll also mention the calf area of these boots are quite roomy, I'm 6'4" with an athletic build and I have to snug up the upper calf portion quite a bit too get it to feel secure...probably won't be an issue if using a riding pant that will go inside the boot however . I mainly commute with the occasional twisty-toe drag-thrashing (this is where the sliders come in handy:)) on the weekends and I feel very well protected with this boot. I bought the white and yellow color scheme, that may be a bit loud when walking into work but that's why I bought them. Love the colors, and makes you known wherever you go. I'm an Alpinestars fan since I started riding years ago, and have yet to buy a bad product from them. You definitely get what you pay for with these guys, nothing but quality with everything they produce. Once again a big thanks to the Revzilla team, great site with great customer service to back it up. September 30, 2013
happy with them Good solid comfortable boots, and after I wear them out I will probably get another pair. July 29, 2013
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