AIR InsolesInsoles have shock absorption effect, improve blood circulation and reduce pressure, and keep your feet healthy. Ideal for running, walking, standing all day. Orthopedic insoles are comfortable even for long wear in socks. . 3 kinds of adjustable height The 3-layer shoe insoles are adjustable (3cm 4.5cm 6cm), you can adjust the thickness by attaching or detaching the removable insert. . Scope of application This height increasing insole is mainly suitable for medium and high shoes or boot, little suitable for bare ankle shoes. If it is a low shoe under 6cm, you may not have enough space to choose carefully. Due to the high height of 6cm, it may take some getting used to when wearing it. . Soft & Breathable With Replaceable Air Cushion and Heel Cushion Pads. The height increasing insole gently protects the heel with PVA material and air cushion, with strong adsorption power. . Unisex Height insoles suitable for both men and women. inside your shoes. .