• The SP Shoe is certified to FIA 8856/2000 homologation standards • Main upper constructed from premium suede for optimum levels of durability, comfort and fit. • The sharp, sleek shoe profile is derived from Formula One to provide the best possible pedal interaction and comfort in the cockpit. • Full tongue upper, lateral and medial constructed from perforated suede for enhanced ventilation and optimized breathability. • Traditional eyelet lace closure system for safe, secure and personalized fit. • Nomex® tubular lining construction for excellent heat-resistance, weight-saving and reduced seams. • Collar padding constructed from Nitrile rubber for comfort and weight-saving. • Alpinestars exclusive lightweight rubber compound sole with special line textured grip and improved pedal feel in race conditions. • Alpinestars foot counter features multi-compound construction and ergonomic polypropylene heel counter, which provides support, protection and stability plus integrated PU fireproof heel for comfort. • Lightweight micro-porous padding around the heel and insole enhances comfort. • FIA /Alpinestars label on the tongue made from fireproof TPR. • Logos and graphics are embroidered.