Cottontails have only recently launched, and already they're wowing people with the innovation in their nappy which makes this one of the only true birth-to-potty nappies out there. And the way they’ve done it is a row of fasteners tucked away into a seam at the back of the nappy. You can unfasten these as your baby grows, and the fabric underneath will concertina out to fit. To complement them, there's a great wrap too - lightweight and secure, it complements the thoughtful and inventive design of the nappy.