Personalized It's A Boy! T-Shirt. It's a boy! Let everyone know that your little bundle of joy that's on the way is a bouncing baby boy! Fun baby shower gift. Everyone loves our Custom T-Shirts! 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.