These soft inserts/doublers are made with 3 layers of 55% hemp/ 45% organic cotton fleece. Use them anytime you need to make a diaper more absorbent. Add to our Boo Bear Buns diapers to create a super thirsty nighttime/nap time diaper. Fit in most diapers. About 3 1/2" x 7". Hemp is 4-8 times more absorbent than cotton and has natural anti-bacterial and anti-microbial properties! It is wonderful for babies with sensitive skin.