XINIFOOT|3 Pairs Elastic Shock Absorbing Shoe Insoles Breathable Honeycomb Sneaker Inserts Sports Shoe Insole Replacement Insoles for WomenXINIFOOT 3 Pairs Elastic Shock Absorbing Shoe Insoles Breathable Honeycomb Sneaker Inserts Sports Shoe Insole Replacement Insoles for Women Soft & Breathable Comfort: This product adopts a three layer design. 1. The outer layer is composed of mesh with excellent air permeability 2. The buffer intermediate layer is reinforced by highly elastic HI POLY, which has excellent shock absorption effect. 3. The bottom layer is made of EVA foamed material