Personalized Safety Eggineer Youth Long Sleeve T-Shirt. Eggineers are engineering eggheads and this humorous egg with safety glasses and hard hat, sporting a cracked shell with bandages, and safety eggineer text, is a fun design for birthdays, holidays and graduations. youth long sleeve t-shirt. Shoulder-to-shoulder taping. Youth: S(6/8), M(10/12), L(14/16), XL(18/20)