Elevated comfort: the Harbor Sandal Collection has a full grain upper, EVA midsole and microfiber wrapped footbed for all day wearability. 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.