The OluKai Kupuna Sandal puts a fresh look on a classic, time-tested comfort. Upper is constructed of rich, natural tumbled full-grain leather. Soft quick-drying jersey knit lining. Footbed is constructed of anatomical compression-molded EVA midsole with full-grain high-character leather drop-in footbed. Outsole is constructed of non-marking rubber outsole with coral reef lug design for added grip. Features soft nylon toe post webbing, laser perforations on strap, laser-etched logo and metal hook hardware on toe post badge. Outboard Strip is built into the outside surface of the sidewall instead of the footbed, OluKai's unique Outboard Strap Construction offers a free yet secure fit for the most comfortable arch support possible. Sizes and colors available as displayed.