Designed as a one-size-fits-most, our reusable nappy wrap should fit from around 8-35 lbs (approx. 3.5kg - 16kg) baby to toddler by adjusting the waist and height of the nappy to get the perfect as your baby grows. This reusable nappy wrap is made from a high quality printed PUL (Polyester Urethane Laminate) shell with a soft external binding around the edge. It is designed with two elasticated flaps internally, allowing you to tuck inserts and/or prefolds securely in place or it can be wrapped around fitted nappies (our bedtime nappy) as a nappy cover. It also features an external double-gusset for premium leak protection and added comfort. Use this nappy wrap with: Prefold Nappy Inserts Fitted/Bedtime Nappy