Keen Men。Original Fit has generous space across the forefoot for toes to splay Quick-cinch bungee lacing for easy on & off Foam midsole for lightweight cushioning Shock-absorbing foam insole with arch support for all-day comfort Higher-traction rubber outsole Multi-directional lug pattern with razor siping for better grip on wet surfaces Eco Anti-Odor for natural, pesticide-free odor control Materials Washable polyester webbing upper Quick-dry lining for active use Non-marking rubber outsole Care Our water sandals are machine washable. Use a small amount of detergent, wash on gentle cycle, and air dry.