Brand new Keen sandals. These are adorable but too big for me and couldn’t return. KEEN SITE DESCRIPTION Non-marking rubber outsole leaves no trace Stability shank delivers lightweight support Recycled PET plastic bungee cord and lace-lock system Eco Anti-Odor for natural odor control Three points of adjustability for a custom fit Contoured arch for midfoot support Material Upper contains recycled PET plastic bottles Aquagrip rubber with Aqua Stop zonal siping provides maximum traction on wet surfaces EVA midsole for lightweight cushioning Quick-dry lining for active use EVA insole with arch support for all-day comfort