New, stronger and more durable hook & loop. Pliable, breathable ultra-comfortable waterproof fabric. The generous cut of the covers presents a superior waterproof exterior on any type of flat, prefolded, or fitted cloth diaper. Wipe cover clean between diaper changes. Leg gussets for advanced leak protection. X-small, small, medium, and large sizes offer specialized fit. X-small size features umbilical cord cut out.