Olukai Punono Men's Casual Sandal Synthetic-and-mesh Upper: Premium smooth full-grain leather straps with hand stitched toe post and detail strap stitching Soft microfiber lining with a neoprene backer Footbed: Compression-molded EVA midsole wrapped in a soft, full-grain leather Anatomically correct contour for a personalized fit and sustained comfort over time Outsole: Hand stained hard leather outsole base, injected rubber pods with texture inspired by a native tapa pounder