These training pants are designed to feel like real underwear for kids who are potty training. With an inner lining made with cotton velour, a hidden layer of super absorbent microterry and PUL, these training pants will do the job of catching small accidents during the day. These trainers are only partially waterproof and not recommended for use overnight or for naps. Hand/machine wash on warm. Tumble dry warm or hang to dry. No bleach or fabric softeners. Small: 9.98-12.7kg, Medium: 9.98-12.7kg, Large: 9.98-12.7kg.