Full grain leather upper. Dual top and back strap hook and loop closure system for quick adjustability. 100% recycled microfiber wrapped insole. Lightweight EVA foam midsole with Merrell Air Cushion in the heel for shock absorption, stability and comfort. Outsole grade EVA for weight saving grip. Elevate your comfort this summer with the Harbor Backstrap sandals from Merrell. Engineered with a lightweight EVA foam insole and a Merrell Air Cushion heel, these shoes provide ultimate stability and are shock-absorbing. They have stylish full-grain leather straps and a dual top and back strap hook-and-loop closure system for quick adjustability. So stay comfortable yet stylish this summer with the Harbor Backstrap sandals from Merrell. Product details: Flat heel. Fastening: strap and buckle. Round and open. Uppers: 100% leather. Lining: 100% polyester. Cushioning: 100% polyester. Sole: 100% EVA.