Personalized Big Sister T-Shirt. It's a wonderful way to create lasting memories as they embark on this new adventure together. Dress your little one in this charming outfit and let them shine as the proud big sister they are meant to be! 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.