Personalized Dream Future Big Sister T-Shirt. Future big sister T-Shirt - White with an adorable little girl in a pink dress and straw hat with a pink ribbon. She says MY DREAM CAME TRUE! I'M GOING TO BE A BIG SISTER! 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.