OLUKAI Nohea Mesh Shoe - Men's Seal Brown/Sulfur 11 Synthetic Upper: Lightweight and breathable air mesh upper materials. Footbed: EverFit contoured footbed with microfiber suede cover. Removable and washable. Outsole: All-weather rubber outsole with heavy gauge sidewall stitch and molded rubber traction pods. Features: The new rubber cupsole has been added for all weather use and year round conditions. Anatomically contoured footbed. Hand-sewn seam stitching and embroidery logos. Contoured footbeds to deliver the perfect balance of instant comfort and lasting support