100% polyesterPolyester liningsnap buttonSize: 70CM is suitable for 5-10KG. 80CM is suitable for 6-13KG. 90CM is suitable for 12-14KG. 100CM is suitable for 14-16KG.Care Instructions: If your baby soils the diaper, pour any solids down the toilet and wash with cold water. Machine wash cold. Use non-chlorine bleach only when needed. Tumble dry low or hang dry. Do not iron. Do not dry cleanSlim-fitting, lightweight, comfortable diapers encourage baby swimmers to move freely during swimming lessons without feeling overwhelmed.Patented Design Breathable, Absorbent and Waterproof As the original manufacturer of swim diapers, our patented three-layer design provides exceptional functionality and comfort.