WillowSprouts Regular Prefolds work wonders for newborns and to add extra absorbency to larger sized diapers. Only the softest organic hemp fleece is used for baby's comfort. Measuring approximately 15 x 18 inches, these will fit inside most medium and large diaper covers and can be used inside of medium and large pocket diapers as well. For one-size diapers, these fit best with the medium and large settings. Made of 2 layers of super-soft organic hemp fleece.