Leather and nylon mesh upper for great air-flow and foot support. Different width two-strap system for stability. Rigid double-density outsole for maximum energy transfer, compatible with SPD cleats. Aggressive aluminium studs for super control when walking on uneven terrain. Anti-slip toe-cap. EVA foam molded insole. Semi-rigid heel for support. Weight (size 42): 369 g/13.10 oz