Personalized Baby's First Christmas T-Shirt. Make this Christmas unforgettable with our Baby's First Christmas apparel. It's a delightful way to create lasting memories and capture the essence of your child's first holiday season. Gift it to your little one or surprise new parents with this thoughtful and heartwarming present that embodies the spirit of Christmas. 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.