ALPINESTARS SMX-S Boots - Black - US 10.5 / EU 45 2223517-1100-45 Replacement Cap perfect for creating a comfortable

perfect for creating a comfortable personalized fit

throttle response and durability ECU re-mapping is mandatory

All boot buckles are replaceable One-piece TPU injected dual-compound foot shell is reinforced by a metal shank inside a co-injected toe reinforcement

Double-density Thermoplastic polyurethane (TPU) ankle protector disks are layered under the upper and backed by poly-foam padding

ALPINESTARS SMX-S Boots - Black - US 10.5 / EU 45 2223517-1100-45 Replacement Cap perfect for creating a comfortableDurable 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