Personalized Proud Firefighter Son In Law Long Sleeve T-Shirt. Thin Red LineLong Sleeve T-Shirt - White with black and red American flag with fire fighter emblem says Proud Fire Fighter Son In Law. Show your pride in your courageous father in law or mother in law. Pre-shrunk 100% cotton 6.1 ounce long sleeve t-shirt. Double-needle stitched neckline and sleeves. Quarter turned. Shoulder-to-shoulder taping. Adult: S, M, L, XL, 2XL, 3XL