Personalized 2 Year Old Birthday Police Car Party T-Shirt. Cute 2 year old birthday T-Shirt - White with police car and I'm 2 quote for a little boy turning two years old. 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.