This supportive sandal can take anything a youth 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. 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. good pre owned condition see photos for measurements