Bamboo velour absorbency - silky soft Waterproof PUL outer fabric - essential! gentle, elasticised leg cuffs for comfort and leak protection - fantastic fit! large elastic waist and side panels for ease of use - just pull up and down easily add more absorbency if necessary Available in a range of print options, let them choose which ones they like Its all part of making it fun for them and helping them feel proud of themselves! Available in 3 sizes. Please see a rough guide below for size ranges. PLEASE NOTE - as with anything size related - chubbiness is a key factor in getting the perfect fit and seal! Please ensure a good seal for maximum mess containment ;) Medium 6 kg - 12 kg Large 10 kg - 17 kg Extra large 15 kg - 24 kg These are not designed to replace a day or night time nappy, however they do a great job of containing small accidents giving you time to head to the bathroom more discretely to clean up.