OLUKAI Women's Lanakila Sandal Leather,Rubber Imported Rubber sole Adjustable strap with metal buckle for a customized fit. Hand-stitched leather toe-post, special strap and footbed emboss inspired by sea urchins. Our premium full-grain leather evokes the rustic spirit of Hawaii's upcountry ranches with a rugged strength and a lifetime of durability. Non-marking molded rubber outsole with traction pods/ Anatomical molded EVA midsole wrapped in high-character full-grain leather. Built into the outside surface of the sidewall instead of the footbed, our unique Outboard Strap Construction offers a free yet secure fit for the most comfortable arch support possible. Our thermoset rubber is a compound of natural and synthetic rubber that will not leave marks or scuffs on surfaces of any type. Our gum rubber outsoles, as a natural material, will always naturally be non-marking.