Invisible insole for height increase, from 3 to 9 cm, booster pad, adjustable fit, shoe, heel insert, greater support, footbed, water absorption Details: increased height: increased 3 cm - 9 cm in height. Whether it's your sneakers, formal or loafers, you can blend them into almost any type and look taller. The best part is that these lift insoles stay hidden so no one knows the secret behind your increased height. BREATHABLE DESIGN: The insole is air-cushioned for maximum comfort in your heel, allowing you to feel relaxed throughout the day. The maximum thickness is also limited to an optimum value to ensure it doesn't make your shoes too tight. Features: Adjustable height, invisible, comfortable, impact resistant, breathable. Material: EVA, Fiber. Gender: Neutral Black Cut: One Size, Full Cushion Free Size 22.5cm-27cm; Semi Cushionless Size 12.5cm. Manual measurement, please allow 0.5cm error, thank you very much for your understanding. Packing: 1 pair of soles added