JoJo Maman Bebe Baby Girls' Newborn Pretty Reusable Swim Diaper 90% Nylon/10% Spandex Imported Machine Wash 90 percent nylon, 10 percent Elastane Practical reusable swim nappies designed to keep accidents contained without the use of another nappy underneath. Pretty frills to the back, elasticated waist and legs. Wear with one of our coordinating sun hats when on holiday Designed to be a snug fit at the waist and leg otherwise they just don't work so if you have a baby with gorgeous chunky thighs it might be worth trying the next size up Machine washable at 30 degrees