Our Born Smart Newborn diaper is an organic all-in-one diaper that fits most babies 6-16lbs. The interior of the diaper boasts 4 layers of organic cotton sewn in to the diaper and an additional 4 layer snap-in insert (included). The unique design allows for easy cleaning and quick drying, with enough absorbency to grow with your newborn. Material Contents Outer: 100% PUL, 100% Organic Cotton Care Instructions Prep diaper before first use by washing 6-8 times. Test the absorbency by pouring water onto the dry diaper; it should absorb instantly. If it does not, wash a couple more times and try again. The number of washes required to properly prep the diaper depends on the type of washer and detergent, as well as the hardness of the water. Wash and dry warm. Do not use bleach or fabric softener. Features Lined with 100% Certified Organic Cotton. Offers one rise setting, allowing you to get a perfect fit right from birth. Features an umbilical notch to allow the cord area to stay dry and clean. A hidden pocket allows you to add additional absorbency if needed (sold separately).