Personalized I Am The Big Brother T-Shirt. Embrace the joy of family growth with this adorable collection that celebrates the bond between siblings. Whether it's a gift for a baby shower or a surprise for your little one, this apparel is sure to bring smiles and laughter. Let your child wear their new title with pride, as they step into their role as a big brother, ready to welcome their new sibling with open arms. 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.