OLUKAI Mens 'Ohana Koa Grey EVA^Nylon^Synthetic Imported rubber sole Ohana Koa features split strap design and Hawaiian-inspired embossing. Non-marking rubber outsole. Features coral reef lug design for added traction. Anatomical compression-molded EVA midsole with a brushed ICEVA drop-in footbed. Our vegan friendly footwear offers the durability, traction and support you expect from OluKai while using 100% high-quality synthetic materials, 0% animal products. Lightweight, quick-drying, breathable and durable materials built for in and around water.