These eco-conscrious Reef Machado Classic are the signature flip flop of surfer Rob Machado. Chrome-free soft nubuck leather upper in a three point thong sandal style with a roudn toe and stiched leather toe thong post. Indgeo fiber embroidering and reinforced webbing and water-based cements lower your environmental footprint. Leather lining and cushioning footbed with perforated arch support. Foam rubber flex midsole. Recycled car tire rubber traction outsole.