Sani-Pant Protective Underwear are made of soft, white, plastic-coated nylon, and these pull-on, waterproof underwear are the perfect coverup for disposable diapers or any other absorbent medium because they are designed to hold absorbent pads, panties, or diapers. Lightweight yet strong, these comfortable underwear are made of the highest quality materials that will not tear and are built to withstand well over 100 washes.