This listing may be purchased along with any small or extra small (see other listings for other sizes) belly band listing to add a waterproof lining to the belly band. The waterproof layer is PUL, which has been used in the medical field for years. It's so durable and reliable that it's also a favorite for cloth baby diapers. It can stand up to hundreds of washings and high heat and will still remain soft and flexible. Although It's 100 % safe, the PUL will be placed between the decorative outer layer and the fleece lining of the belly band.
To add a waterproof lining to your belly band, simply purchase one of this listing for each belly band you wish to purchase.