Personalized Structural Engineer League Youth T-Shirt. A red, white and blue design containing an I-Beam and structural engineer text is a fun gift for engineers and engineering students that are in a league of their own. Let the good times roll in a durable T-Shirt that takes kids from school to play in an amazing array of colors. 5.0 oz., pre-shrunk 100% cotton. Seamless 1x1 rib collar.