ALPINESTARS SP-X BOA Boots - Black - EU 39 2222024-1100-39 lb7 Maintaining shell integrity is vital

Maintaining shell integrity is vital for safety and with the possibility of multi-directional forces impacting on the visor

GT3794VA Turbocharger

elasticity and natural "butt feel" in a motorcycle seat cushion

Cape back vent with snap for increased breathability

Redesigned instep and Achilles accordion flex zones construction for superior comfort

ALPINESTARS SP-X BOA Boots - Black - EU 39 2222024-1100-39 lb7 Maintaining shell integrity is vitalSP 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 bike 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