Personalized Rocket Kid 1st Birthday Newborn Layette. Blast off! A young astronaut sits on a red rocket as it flies off into space, zooming around a giant 1. Cute 1st birthday gift for your little astronaut. 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