It's summer all year 'round in the Chaco Z/Volv flip-flop sandal! Polyester jacquard webbing straps. Nylon webbing toe post. Synthetic leather badge with logo. Z/Volv Platform features a one piece PU footbed, midsole, and outsole that offers support, durability, and traction without compromising the Luvseat support you've come to love. Luvseat PU midsole offers arch support and all-day comfort. Non-marking EcoTread rubber outsole features 25% recycled materials, and boasts Z-shaped lugs for aggressive traction. Material: Polyester.