Personalized Environmental Eggineer Newborn Layette. Eggineers are engineering eggheads and this humorous egghead, muddy and wearing a respirator with environmental eggineer text, is a unique gift design for birthdays, holidays or graduation. 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