Personalized Baby's First Christmas T-Shirt. Gift this charming apparel to new parents or add it to your baby's wardrobe for a fun and festive look. With phrases like "My First Christmas" and "1st Xmas," it's a delightful way to celebrate the holidays. Make this Christmas unforgettable with our cute and funny designs that will bring smiles to everyone around! 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.