Washable, reusable swim diapers for children. Worn under a swimsuit or alone, it keeps the pool sanitary and won’t turn into a weight like ordinary diapers. Standard Youth Youth sizes 4/5 (19” waist/36-46 lbs) 6/7 (20”waist/47-57 lbs) 8/9 (21”waist/58-72 lbs) 10/11 (22”waist/73-85 lbs) 12/13 (23”waist/86-96 lbs) 14/15 (24”waist/97-110lbs)