It's adjustable in both size and absorbency. Adjust the size as your baby grows. You can use it on most babies that range from 8-35 pounds (3.5-16 kgs). Stuff it with as little or as much absorbency as you need to get you through a quick trip to the store, Product Features Color: Cow Fabric content for diaper and inserts: 100% polyester. Includes 2 inserts: a 3-layer small insert, and a 4-layer medium/large insert. Machine wash and tumble dry warm, no bleach or fabric softeners. Anatomically-correct design provides excellent fit for a wide range of babies. Made in the USA.