A new addition to the to Alpinestars class-leading SMX range, the SMX-S Waterproof is constructed from a durable microfiber that incorporates class-leading performance and protective attributes as well as a breathable and waterproof membrane.

• Durable microfiber upper construction offering superb levels of flexibility and comfort.
• Incorporating a waterproof and breathable membrane for high levels of comfort and weather performance.
• Ergonomic new last for forefoot streamlining to enable greater precision on the bike's controls and for superior, wide-ranging foot profile, fit and comfort.
• New, ergonomically optimized TPU shin plate protector is race-derived for superior impact and abrasion resistance.
• Lateral TPR-injected ankle support construction offers optimized levels of protection and stability.
• TPU double-density ankle protectors are layered under the upper in both lateral and medial side for excellent all-round levels of protection.
• Integrated, replaceable bi-injected TPU slider features new easy no-screw fixing concept for quicker and easier replacement.
• Shift pad made from TPU incorporates technical texturing for protection and grip.
• Medial side entry opening / closure system features elastic-mounted zipper with wide Velcro brand hook-and-loop closure for flexibility and secure fit. The aperture opening is large to promote easier entry / exit.
• Internal toe box protection is layered under the upper for durability, improved feel and performance.
• New, dual-compound removable anatomic footbed includes EVA and Lycra for performance, comfort and support.
• Alpinestars' new and exclusive compound rubber sole promotes improved feel and grip, water dispersion and durability.
• SMX-S Waterproof Boot is CE Certified.

Technology:

CE Certification - Protection and protectors that are CE-certified have met the strict performance standards and requirements of the European Union.

TPU - Thermoplastic polyurethane. A hybrid material - a mixture between hard plastic and soft silicone. A very dense and smooth rubber.