1. Great Material: The surface of the shoe insoles adopts a breathable mesh material, and the breathable antibacterial fabric-designed to improve air circulation and prevent the release of moisture. Memory foam insoles are suitable for men and women, it provides cool and relaxing comfort when commuting to school, walking ,meeting, shopping or traveling. 2. Adjustable Height Choose: This height increasing insoles is adjustable (increase height 4 cm), the 2-layer detachable design can let you adjust the thickness by attaching or detaching the removable insert. So you can choose the height according to the style of shoes you are wearing.The best part is, these elevator heels remain concealed, such that no one ever knows the secret behind your increased height. It will Invisibly enhance your confidence! 3. Breathable & Comfortable: It's designed to better circulate air and prevent moisture buildup, protecting heel with EVA material and air cushion, with high adsorption power. So you can use this insoles with any shoes and relaxed comfort when youre in the car, walking, or on the go. These Insoles are durable, re-usable make great shoe Insoles for women men. (Notice: Insoles are not suitable for low-top shoes. The minimum height of the insole is 2.5cm.) 4. Shock-Resistance & Arch-Resistance: Thanks to a smart air cushion design, the cushioned caps make comfort to your heels and protect you knees and ankles, balances foot pressure, suit for standing a long time. The maximum thickness is also limited to an optimum value just to ensure that it doesn't make your shoes too tight. 5. Adjustable Size: It is suitable for Boot, Sneaker, and trainer etc..... Inserts are best worn with a shoe slightly larger than your normal size. And insoles can easily be trimmed and cut, allowing you to adapt them to the shape and size of your footwear style.