Personalized Chemical Engineer Blue Drops Youth Long Sleeve T-Shirt. Chemical Engineer Blue Drops Youth Long Sleeve T-Shirt - White are a unique way to strut your smarts in style, with the words "Chemical Engineer" atop icy droplets in overlapping shades of blue. This design would make a great gift for a chemical engineer youth long sleeve t-shirt. Shoulder-to-shoulder taping. Youth: S(6/8), M(10/12), L(14/16), XL(18/20)