Ultra soft & stretchy 98% Organic Cotton with 2% Spandex- creating a natural, breathable, durable, stretchable fabric unlike any other. High quality printing that is very soft to the touch. One zip to put on. Zips all the way down one leg for easy dressing. Durable YKK double zipper also zips up for quick diaper changes. Fold over cuffs on hands and feet create a versatile sleeper that keeps baby's hands and feet warm when it's cold.