Personalized Proud Firefighter Best Friend Youth T-Shirt. Thin Red LineYouth T-Shirt - White with black and red American flag with fire fighter emblem says Proud Fire Fighter Best Friend. Show your pride in your courageous best friend BFF. 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.