Incorporating full grain leather & microfiber for excellent levels of durability, comfort & protection, the AST-1 Shoe sets a new benchmark in road riding footwear, offering optimized levels of performance & a uniquely aggressive design. Features Multi-panel main upper construction consisting of premium full grain leather for excellent levels of comfort & durability on medial panel & top tongue. Lateral panel & lower tongue constructed from advanced textile for increased levels of flexibility & comfort Innovative securing lace system features small loop closure on collar to safely secure the lace, the loop is secured onto upper with a snap fastener for a quick release Double density TPU ankle protector on medial side layered under the upper offers protective performance & abrasion resistance in key area TPR lateral ankle protector to provides strategic all-round protection & flexibility in key areas TPU shift pad offers optimized levels of protection & durability Internal toe box protection is layered under the upper for durability, enhanced feel & performance Incorporates full 3D mesh lining throughout for better breathability & comfort PU insole around the heel area for comfort & stability features Anti-sliding suede reinforcement on heel area keeps foot in position while riding Alpinestars’ exclusive vulcanized rubber outsole provides fit & support & provides excellent water dispersion The AST-1 Shoe is certified