Personalized Big Brother Shark Newborn Layette. Big Brother Shark! A cute shark jumps out of the water with the words Big Brother in its teeth. Cool gift for any big bro! 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