Class A 100% cotton, 0 formaldehyde, no fluorescent agent, anti-static.Comfortable and skin-friendly, all-purpose one-piece clothing for the four seasons, baby can be nipped and gnawing fabrics after careful study to care for baby's growth, comfortable home clothing for baby, boneless sewing, no grinding of baby's skin, double care of baby's skin.The door lock design, the crotch opening is convenient for wearing and changing diapers, the neckline, the foot thread, delicate and comfortable, the cuff decoration thread, environmental protection Carter printing