The nothinZ unisex Slip-on Clogs are an indoor/outdoor sandal. These clogs are made from a proprietary patented material called "recovelon". The recovelon material in these slip-ons, molds to your individual foot shape, giving you personalized fit. Made with 100% recovelon (mixture of rubber, ethylene-vinyl and elastomer) Deep-Z tread outsole for superior traction Non-slip footbed for safety Molded arch support for comfort Molded internal toe bar for comfortable fit Movable comfort back strap for adjustable fit 6 month warranty with proof of purchase nothinZ Slip-On Sandals