The Shimano M089 Bike Shoes deliver great versatility and performance on the trail. . . . . . Tough, stretch resistant synthetic leather and mesh upper. Cross X Strap is optimized for relieving tension on top of foot during push off motion. Super low profile micro adjust buckle securely holds foot two position buckle accommodates more foot shapes. Single density extra cushion insole conforms to a variety of foot shapes and provides shock absorbing cushioning. Volume last for a more accommodating toe box. Torbal torsional midsole allows natural rider flow motion during downhill. Expanded SPD cleat adjustment range to accommodate race or trail minded riding styles. Glass fiber composite polyamide midsole for power transfer. High durability rubber outsole. Stiffness rated for comfort 5 out of 12. Best matched with these pedals: PD M530, PD M520. Weightsize 40: 1 lb. 8 oz. 692 g .