Created to make it easier to switch from disposable nappies to reusables, it's an innovative patent-pending design that is easy to wash, comfy to wear and safe for delicate baby skin. These are Qualspec laboratory certified and tested to hold 1026ml of fluid (with one booster), compression tested with no leaks at 500ml. Antimicrobial layers: fight odour and bacteria and lock fluid away to keep baby dry. Clever black polybrush lining wicks moisture, repels solids (so they don't stick), and resists stains. All materials are Oeko-Tex Standard 100 certified, no harmful chemicals for the baby's safety. Simple to use, thanks to our all-in-one patent-pending design (put on like a disposable). Easy to wash- no soaking, no special detergents, machine washable. 12 hours of overnight protection