Features Contoured Fit follows the contours of your foot for a comfortably snug fit No-tie bungee lacing with adjustable hook-and-loop closure Shock-absorbing foam insole with arch support for all-day comfort Engineered rubber outsole is light, flexible & extremely durable Multi-directional lug pattern provides superior traction Machine-washable for easy care Eco Anti-Odor for natural, pesticide-free odor control Materials Washable polyester webbing upper Quick-dry lining for active use Non-marking KEEN.FUSION rubber outsole Care These shoes are machine washable. Select cold water and a gentle cycle, and remove to air dry. Then go get them dirty again!