Personalized Beam Stockings Newborn Layette. An I Beam with Christmas stockings hanging from it is a humorous structural steel design for engineers, steel detailers, fabricators and construction workers at holiday time. 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