Personalized Dancing Rock Newborn Layette. A happy dancing rock is a humorous design to personalize with a name or your own "Rock on" text. Fun gifts for birthdays and holidays. 100% combed ringspun cotton 5.8 ounce 1×1 baby rib sleeper. 3/8" flatlock binding at envelope neck and cuffs. Back sleeve flap to protect hands. Elastic opening at bottom. Infant: 0-3 Months