Personalized Wing Nut Newborn Layette. Wing Nut text and an acorn nut critter with wings is a humorous twist on the phrase, wing nut. 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