Personalized 5th Birthday Girl Outfit T-Shirt. Celebrate turning 5 years old with this pretty heart and arrow design for a 5th birthday party photo idea. 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.