The Shimano WR83 is a full-featured SPD-SL lightweight performance shoe. Made of supple, stretch-resistant synthetic leather and open mesh for optimal breathability, the shoes also feature a low-profile micro-adjust buckle and dual off-set straps. Enhanced profile and dual density insoles provide biomechanical support. Shimano Dynalast technology secures the foot in the optimum ergonomic position to yield more power in the upstroke. Key Features: Supple, stretch-resistant synthetic leather Open mesh for optimal breathability Low-profile micro-adjust buckle and dual off-set straps Enhanced profile and dual density insoles for biomechanical support Women's specific fit Shimano Dynalast secures the foot into the ideal ergonomic position for a more efficient up stroke Lightweight carbon fiber composite sole with adjustable cleat mount Weight: 486g for a pair in size 40