Diaper covers come in many styles
and shapes, but their function is to provide a waterproof outer layer for
non-waterproof diapers (ie. fitteds and prefolds). They are often fitted with elastic
and fasten with snaps or velcro. Some covers pull-up, like underpants. Diaper
covers are usually made from Polyurethane laminates (PUL), fleece or wool. Wool covers, such as Sustainablebabyish Sloomb do need to be lanolized to create a waterproof barrier. PUL covers (Thirsties Duo Wrap, Swaddlebees Capri, Bummis Super Whisper Wraps and Super Brites) can be washed with the rest of your cloth diapers. We recommend hanging your PUL covers to dry as this helps to extend the lifetime of the PUL and the elastics.