Personalized 1st Birthday Tuxedo Penguin Newborn Layette. Happy 1st birthday! This cute penguin celebrates a baby boy's first birthday. Complete with a classy tuxedo! Personalize and add your baby's name. 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