Do you need adult plastic pants with disposable diapers? The short answer is YES! With few exceptions all disposable diapers will leak from time to time. Our plastic pants have be designed specifically for disposable diapers to be compact fitting and waterproof. When plastic pants are snug fitting they reduce and even stop leaks and improve the performance of any brand pull on or tape on disposable diapers. Please measure and use our size chart before ordering our plastic pants.