The OluKai Nohea Mesh Men’s Shoes are designed with a versatile drop-in heel and breathable mesh upper that lets air out while keeping comfort in. These shoes run large so order 1/2 size down. Upper: Lightweight air meshFootbed: EverFit, long lasting anatomical contoured footbed with Dri-Lex moisture wicking cover, removable, and washableOutsole: All-weather rubber outsole with heavy gauge sidewall stitch, non marking rubber