This supportive sandal can take anything a kid can dish out. An adjustable hook-and-loop strap lets kids put them on themselves, and quick-drying webbing is perfect in and out of the water Washable polyester webbing upper Non-marking rubber outsole Hydrophobic mesh lining Metatomical EVA footbed Hook and loop strap over instep PFC-Free materials Secure fit lace capture system All KEEN water sandals are machine washable. Use a small amount of detergent, wash on gentle cycle and air dry