The SP-X Boa boots are a sleek sport boot designed to fit under tech riding pants & provide superior walking capability. Optimized for the sport & sport touring rider, the SP-X Boa boots are compact, mid-height boots with premium levels of protection & comfort on & off the bike. The upper is constructed from a combination of advanced microfiber, ultra-soft Rideknit® material & knitted mesh, plus seamless thermo-welded parts. The lower features a TPU heel counter, toe slider, & the Alpinestars TPF Transversal Protection Frame on the sole, allowing for high levels of protection against impacts & any bending or twisting. in addition, the sole also features an all-new design with an asymmetric back heel to facilitate the rider’s natural stride & promote off-bike stability. For protection, the SP-X Boa boots have an integrated shin impact protector, dual-density ankle discs, plus TPU shift pad & toe slider reinforcement. & for comfort, the knitted areas on the front &...