1. 3 kinds of heights are optional, the height increase is not limited 2. Increase the height while reducing pressure and shock absorption, effectively supporting the arch of the foot 3. Breathable velvet cloth, sweat absorption and non-slip 4. The concave foot bed fits the arch and heel of the foot, and is not easy to swell the foot 5. Material: silicone + velvet cloth 6. Weight: 3.5CM-136g, 2.5CM-91g, 1.5CM-55g
