Alpinestars SP-X BOA Boots — EU 39, Mid‑Calf, Black/Silver

SP-X BOA Boots are a sleek sport boot designed to fit under tech riding pants and provide superior walking capability.

Optimized for sport and sport-touring riders, the compact mid-height construction delivers premium protection and comfort both on and off the bike.

• Upper made from Rideknit® material and knitted mesh with seamless thermo-welded panels for a smooth, ergonomic fit.
• Lower features a rigid heel counter, reinforced toe slider and a Transversal Protection Frame (TPF) in the sole to resist impacts and prevent bending or twisting.
• The sole uses an asymmetric back heel to facilitate a natural stride and improve off-bike stability.
• Protective elements include an integrated shin impact protector, dual-density ankle discs and a reinforced shift pad and toe slider reinforcement for added durability.
• Comfort comes from knitted flex zones at front and rear actuation points, a PU midsole with double-cushioned heel compound and a removable OrthoLite® insock for excellent walking comfort.
• Entry and closure are quick and precise thanks to a medial zip paired with the BOA® speed lace system.

Perfect for sport riders who want strong coverage and protection without the full race-boot look.