Keen Women’s Elle Backstrap Sandal Black with purple mountains FEATURES Higher-traction rubber outsole Recycled PET plastic Eco Anti-Odor for natural odor control MATERIALS Washable stretch gore upper contains recycled P.E.T. plastic bottles Soft microfiber lining EVA insole with arch support for all-day comfort Non-marking rubber outsole leaves no trace https://www.keenfootwear.com/products/womens-elle-backstrap-sandal-tortoise-shell-birch