Personalized Pre-K Here I Come Unicorn Girls Toddlers Kids Back To School T-Shirt. Celebrate the milestone of starting Pre-K with these charming gifts and apparel that not only make a statement but also foster a love for learning. 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.