SMX-S Boots - Black - US 13.5 / EU 49 SMX S Boots 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