Gripgrab Faststream AERO SHOE Covers Unisex Other accessories, Size: 9.5-10.5, Black

Aerodynamic design - Reduces the air resistance of road cycling shoes; Very tight fit, only for slim road cycling shoes with laces or twist fasteners Less watts, more speed - Tested in the wind tunnel with the cycling professionals from Uno-X Mobility Pro Cycling; saves up to 10 watts at 45 km/h Aero sock compatibility - Designed to combine with aero socks; the short overshoes only cover your road cycling shoes, so you only need to wear one layer on the ankle and calf SMOOTH AERODYNAMIC SURFACE - Smooth exterior provides clean airflow over road cycling shoes; Ideal for short, intense bike races and time trials where every second counts Minimalist wear reinforcement on the sole - The lightweight reinforcement ensures better durability; the fastener can be shortened if necessary so that it does not survive