Alpinestars SP-X Boa Motorbike Motorcycle Boots - Black / Silver

SP-X BOA Boots.SP-X boots are a sleek sport boot designed to fit under tech riding pants and provide superior walking capability.Optimized for the sport and sport touring rider, the SP-X are compact, mid-height boots with premium levels of protection and comfort on and off the motorbike.The upper is constructed from a combination of Rideknit material and knitted mesh, plus seamless thermo-welded parts.The lower features a TPU heel counter, toe slider, and the Alpinestars Transversal Protection Frame (TPF) on the sole, allowing for high levels of protection against impacts and any bending or twisting.Additionally, the sole also features an all-new design with an asymmetric back heel to facilitate the rider´s natural stride and promote off-bike stability.For protection, the SP-X has an integrated shin impact protector, dual-density ankle discs, plus TPU shift pad and toe slider reinforcement.For comfort, the knitted areas on the front and back flex points offer great freedom of movement,