Boots ALPINESTARS SP-X Boa black / black. SP-X BOA boots are stylish sport boots designed to fit under technical riding pants and provide superior walking ability. Optimized for the sport and sport rider, the SP-X BOA boots are compact mid-height boots with superior levels of protection and comfort on and off the bike. The upper is constructed with a combination of advanced microfiber, ultra-soft Rideknit® material and woven mesh, plus seamless heat-welded parts. The lower part features a TPU heel, toe slider and Alpinestars TPF cross protection frame in the sole, allowing for high levels of protection against impact and any bending or twisting. In addition, the sole also features a completely new design with an asymmetrical rear heel to facilitate the rider's natural stride and promote stability off the bike.

MAIN CHARACTERISTIC 

• TPU heel cup, shift pad, toe slider and rotor protection.
• Dedicated BOA lateral quick release system designed for optimal closure and custom fit.
• Front gusset made of Lycra co-injected with soft TPU for comfort and durability.
• Dual heel pads.
• PU midsole integrated in the heel.
• Protective TPU inserts.
• Removable anatomical EVA footbed with Lycra lining.
• Profile designed for comfort. a>
• Walking wheel and asymmetrical heel shape for greater stability when walking.
• Heel shape with footrest and designed grip.
• Integrated shin guard.
• Internal dual density malleolus impact protection.
• According to European legislation, the CE mark is a conformity requirement for the marketing of this product. The following standards apply: CE EN13634:2017
• Advanced microfiber and ultra-soft Rideknit® calf.
• New and exclusive Alpinestars rubber sole.