With a durable microfiber upper for comfort and fit and incorporating a host of advanced protective features, inside and out, the SMX-S Boot features an ergonomic forefoot shaping, a breathable lining and Alpinestars’ exclusive rubber compound sole for optimized levels of support and performance.

• Durable microfiber upper construction that has superb flexibility and a comfortable feel
• Ergonomic new forefront boot shape is streamlined to better control and feel of the motorcycle controls
• Thermoplastic Polyurethane (TPU) shin plate protector is race-developed for superior impact and abrasion resistance
• Lateral Thermoplastic Rubbery (TPR)-injected ankle support construction provides superior comfort and impact resistance
• TPU double-density ankle protectors are layered under the boot outer on the lateral and medial sides
• Breathable textile interior lining features anti-sliding suede reinforcement at the heel area
• Integrated, replaceable bi-injected TPU slider features new screw-on fastening system
• Shift pad made from TPU incorporates technical texturing for grip and impact resistance
• Medial side entry opening/closure system features elastic-mounted zipper and wide hook-and-loop closure flap
• Internal toe box protection is layered under the boot upper for durability, improved feel and better performance
• Removable dual-compound anatomical footbed is made with EVA and stretch fabric
• Rubber compound sole
• CE-certified