Personalized I am Going to be a Big Sister T-Shirt. I am going to be a big sister apparel and gifts hast adorable fox design. Click on the tabs to choose the product, size, and color that you wish this design to be printed on. 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.