OLUKAI Nohea Twill - Men's Casual Shoes Synthetic Natural cotton twill upper lined with soft moisture-wicking Dri-Lex microfiber. EverFit, long lasting anatomical contoured footbed with Dri-Lex microfiber cover. Removable and washable. All weather rubber outsole with heavy gauge sidewall stitch. Non-marking rubber. Versatile Drop-In Heel for shoe and slide functionality, hand-sewn seam stitching, gore fit panels, and embroidered logo details. Walk all-day in OluKai comfort.