Personalized I Beam Face Long Sleeve T-Shirt. An I Beam with Christmas stockings hanging from it is a humorous structural steel design for engineers, steel detailers, fabricators and construction workers at holiday time. Pre-shrunk 100% cotton 6.1 ounce long sleeve t-shirt. Double-needle stitched neckline and sleeves. Quarter turned. Shoulder-to-shoulder taping. Adult: S, M, L, XL, 2XL, 3XL