Personalized Boston Terrier Dog US Flag July 4th Youth T-Shirt. Cute Boston Terrier dog wears red white and blue sunglasses and collar with a heart shape US flag background Let the good times roll in a durable T-Shirt that takes kids from school to play in an amazing array of colors. 5.0 oz., pre-shrunk 100% cotton. Seamless 1x1 rib collar.