OluKai Mens Nui - - DETAILS UPPER Premium full-grain leather with laser-cut perforations and stitching details. Soft textile lining. FOOTBED Compression-molded EVA footbed topped with premium full-grain leather. Anatomically correct contour for a personalized fit and sustained comfort over time. OUTSOLE Non-marking rubber and gum rubber outsole with island inspired pod design. FEATURES Decorative stitching on footbed, hand-sewn whipstitching, soft nylon toe post, embroidered logo. OUTBOARD STRAP 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.