Royal Blue RomperMade from 95% viscose from bamboo and 5% spandex for silky soft comfort and stretch. Naturally breathable, moisture wicking, and hypoallergenic. Dual direction zipper for quick, hassle free diaper changes. Protective zipper guard to prevent skin irritation. Fold over mittens on all sizes to keep hands warm and prevent scratches. Convertible footies switch between footed and footless in seconds. Grippy soles on sizes 6M and up to support early walkers.