Features of the Shimano Women's RP3 Bike Shoe High-Density synthetic leather with perforation improves Fit and breathability Super low-profile, reverse mount buckle securely holds foot Off-set Strap relieves tension at Highest point of the foot Lightweight glass fiber reinforced nylon sole Women?s specific last for a natural, comfortable Fit Synthetic Leather - Lighter, stronger and more durable than natural leathers Asymmetric straps relieve pressure points Expands range for mounting cleats