WEST BIKING Bicycle Riding Insole Sports Slow Shock PU Comfortable Insole, Size: 39-40(Blue)1. Material: PU 2. Weight: about 62g pair 3. Size: 37 38 39 40 41 42 43 44 4. Applicable gender: both male and female Features: 1. Use foam material, flexible, high elastic shock absorption, free movement 2. Can be cut, with marking design at the bottom 3. The overall lightness and softness, comfortable foot feel, soft and tough not to collapse 4. The cushion surface is sweat absorbing and breathable, and the inside of the shoe is not easy to get wet