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Alpinestars SMX-3 Vented Boots

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Alpinestars SMX-3 Vented Boots

Shipping & Returns

Orders $100 and over qualify for our free shipping offer. See our full shipping policy for further shipping details.

Return any new, unused and unaltered item within 30 business days. Create a return label online for as little as $7.99. Please read our return policy.


Clean and contemporary design lines, advanced anatomic profiling and excellent comfort features set the lightweight, C.E. certified S-MX 3 Boot apart. Conceived by Alpinestars' performance footwear department to incorporate an innovative buckle closure system and class leading protection, the S-MX 3 offers critical performance edge on road or track.

  • The main upper material is microfiber
  • Front and rear accordions made by lightweight microfiber that offer superior comfort
  • External TPU (Thermoplastic Polyurethane) protection on the outer ankle and heel counter from impact while abrasion
  • Medial side is protected by an inner TPU ankle disk double density
  • High modulus TPU injected: shift pad, heel counter, medial strap and lateral ankle buckle holder
  • New integrated replaceable bi-injected TPU slider with a new screw fixing concept
  • Combination medial zipper and Velcro on medial side and additional closure adjust by Velcro in the lateral top collar
  • Instep closure system made by slim buckle with aluminum arm with micro closure regulation
  • Internal toe box reinforcement layered under the microfiber
  • Breathable textile lining with anti-sliding microfiber suede on the heel
  • Removable anatomic EVA (Ethylene Vinyl Acetate) foam footbed
  • Alpinestars exclusive vulcanized rubber compound sole
  • C.E. certified


Model Name for Gear
Age & Gender

Item Numbers

Details Item Number Availability Store Pickup
Details:Black  6.5/40 Item #020-3405-1086 Availability:In stock: Ready to shipStore Pickup:Available
Details:Black  7.5/41 Item #020-3405-1087 Availability:Backorder: Ships in 7-12 daysStore Pickup:Unavailable
Details:Black  8/42 Item #020-3405-1088 Availability:Backorder: Ships in 7-12 daysStore Pickup:Unavailable
Details:Black  13.5/49 Item #020-3405-1095 Availability:Backorder: Ships in 7-12 daysStore Pickup:Unavailable
Details:Black  14/50 Item #020-3405-1096 Availability:Backorder: Ships in 7-12 daysStore Pickup:Unavailable

Alpinestars Boots & Shoes

Euro Size363738394041424344454647484950
USA Men's Size3 1/24566 1/27 1/2899 1/210 1/211 1/21212 1/213 1/214
USA Women's Size56788 1/29101111 1/2

General Sizing information

If you are unsure about your size, compare your body measurements to the charts provided to determine the correct fit. These charts will give you a good idea of the size to order, but be sure to read special sizing information that may accompany an item description. Some merchandise dimensions may vary from the averages charted here. Check before ordering European-size Alpinestars boots or shoes.


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