Alpinestars S-MX 5 Boots

  • 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
  • The S-MX 5 boot is 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
  • 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 last 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
  • Waterproof and “extra” vented versions available (see drop down menu below)

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Sizing Information

The overall fit/size of this new style seems “true” to their published size chart (see below), so if you are comfortable with a certain size from previous boots, then choose the same size. I’d consider the width of the men’s sizes to be normal to slightly wide (D or E).

Euro Men’s US Women’s US
36 3.5 5
37 4 6
38 5 7
39 6 8
40 6.5 8.5
41 7.5 9
42 8 10
43 9 11
44 9.5 11.5
45 10.5 -
46 11.5 -
47 12 -
48 12.5 -
49 13.5 -
50 14.5 -

Product Video

Our Two Cents

The S-MX 5 boots are aggressive looking race style boots that would be perfect for the serious sport rider or amateur track rider. Protection in this boot includes a hard plastic shin piece, hard armor pieces in the ankle area and reinforced toe and heel boxes. The boot also comes with replaceable toe sliders for the more aggressive rider. Many boots that offer the same type of protection are difficult to walk around in, but these boots have large stretch zones in the front and rear ankle area that allow for comfortable mobility. The top of the toe has some shifter pads on the boots to prevent wearing through the top from shifting. This boot is offered in a “standard”, vented, and a waterproof version. All three versions (normal, vented and waterproof) look generally the same. The vented boot makes use of all five visible vents (heel, ankle, shin, side of calf) and also has a couple panels of perforated material on the foot. With the “normal” version, the vents on the heel and ankle are “dummies”, and of course the waterproof boot has all “dummy” vents, but includes a waterproof/breathable liner to keep water out while still allowing for moisture to escape. So this style offers a variety of construction styles for different weather conditions so you can select the right boot to suit your needs. Take the “View Larger Pictures” link above to see some good closeups of these boots and their features.

Happy Customers Who Bought This Product

From: Kent B.
Location: Wisconsin

These are probably my favorite motorcycle gear purchase of the last decade. I had heard people say these boots were as comfortable as basketball shoes and I thought, "Yeah, right." But they really are that comfortable! They are nice and wide in th... (Read more...)

From: Tyler H.
Location: Oregon

Boots fit great and offer much more protection than my old ones. Tail bag is great plenty of space for a couple day trip. Fast shipping and excellent service as always. (Read more...)

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