materialPVC BREATHABLE FABRICDesigned to better circulate air and prevent moisture buildup, our shoe lifts for women and men offer cool, relaxed comfort when youre in the car, walking, or on the go. DUAL-LAYER COMFORTOffering better heel shock-resistance thanks to a smart air cushion design, each lift for shoes supports the arch to the ball of your foot while adding height so you can maintain a natural presence. INCREASED HEIGHTThese incredible foot insoles allow you to increase your height by up to 2.5 in just a blink. Be it your sports shoes, formal or casual shoes, you can insert these in almost all types and look remarkably taller. The best part is, these elevator heels remain concealed, such that no one ever knows the secret behind your increased height.