Chaco Men's Z1 Pro Sandal 100% Polyester Imported Rubber sole Sandal featuring crisscross webbing straps with adjustable buckle at ankle and logo emblem at heel Custom injection molded ladder lock for a secure hold heel shank construction Durable LUVSEAT polyurethane footbed with slip -resistant classic diamond pattern Non-marking Vibram pro outsole with mega grip rubber 3 mm lugs with water drainage channels