Our Bummis Super Whisper Wrap Diaper Covers feature a state of the art Aplix-closing (industrial velcro) cover with an innovative overlap design that ensures a custom fit on any baby. The Bummis Super Whisper Wrap is made from a super resistant waterproof laminate sandwiched between two layers of a soft polyester knit. Made to withstand even the rigors of industrial washing and drying. A durable, heavy-duty elastic around legs and tummy which will not wear out with repeated industrial washes. Elastic is encased in soft, smooth polyester knit bindings for a comfortable, stretchy fit, and a leakproof seal. The generous cut of this Bummis diaper cover makes it suitable for prefold diapers or fitted diapers. You should machine wash and dry your Bummis diaper cover at normal temperatures. Avoid chlorine bleach or any other whitening agents.