Polyester, TPU Imported Hypoallergenic & Waterproof Fits 4-12 pounds Snap down front for sensitive cord care Patented double inner gusset leak prevention technology US Pat. 8,425,508 The Kanga Care Lil Joey is a newborn diaper designed to fit from approximately 4-12lbs featuring the patented double inner gusset leak protection design, exclusive to Kanga Care brand diapers. The inside of each diaper is designed with two gentle inner gussets, a double barrier that protects against accidents. The Kanga Care Lil Joey also features a snap down front for sensitive cord care during those first precious days. The simplest of cloth diaper systems on the market, the Kanga Care Lil Joey is an All in One diaper with the core consisting of four absorbent layers of microfiber while a soft and gentle microchamois inner keeps babies new skin fresh and clean. The Kanga Care Lil Joey exterior is a waterproof polyester TPU that comes in a variety of fun colors and fashionable prints.