Personalized Construction Crane Big Brother T-Shirt. Gift your little builder with this unique clothing line and watch them shine with pride in their favorite construction-themed outfit! Wardrobe essential for looking good, 24/7. 5.0 oz., pre-shrunk 100% cotton. Seamless 1x1 rib collar. Shoulder-to-shoulder taping. Double-needle stitched sleeves, bottom hem and front neck. Note: greys are a cotton/polyester blend.