ALPINESTARS SMX-S Boots - Black - US 4 / EU 37 2223517-1100-37

ALPINESTARS SMX-S Boots Black US 4 / EU 37 2223517-1100-37

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