Design: Quick-dry webbing made from recycled plastic using traceable, verifiable REPREVE™ polyester yarn by Unifi™ supports your foot and stands up to abuse Multiple points of adjustability let you dial in the absolute perfect fit Easy hook-and-loop closure comes on and off quickly and gets the fit just right Adjustable ankle strap lets you customize your fit Injection-molded strap ends for quick and easy grip and adjustability Plastic buckle closure gets you in and out quickly In-Shoe Comfort: Lined with lightweight, breathable mesh that keeps your feet cool and comfortable Robust EVA footbed for enhanced comfort built for all-day wear Durability & Traction: Grippy rubber outsole for durability and traction Nylon shank stabilizes and supports your foot on uneven terrain Additional Details: Antimicrobial treatment to help reduce foot odor