Personalized Nano Eggineer Infant Romper. Eggineers are engineering eggheads and this humorous egghead with a magnifying glass and nano eggineer text will tickle the funny bone of your engineer at birthdays, holidays and graduation. Meet your new favorite outfit! Keep dressing simple with this one piece, lap shoulder t-romper. Super soft and perfect for baby's sensitive skin. 5.5 oz. 100% combed ringspun cotton premium jersey (CVC Colors are 60/40; Heather is 90/10 combed ringspun cotton/polyester)