1,self-sticking gel insole 2,Reusable and Environmental meterial. 3,new design style of insole PU Gel, a natural, washable and reusable substance.reduce pressure and pain on your foot. Adhesive back holds heel cushions securely in place. Hypoallergenic pad won't irritate sensitive skinNoG-009MaterialFoam/ velvetColoras your requestThick1.8mmSizeWeight