Personalized Proud Firefighter Sister In Law Women's T-Shirt. Thin Red LineWomen's T-Shirt - White with black and red American flag with fire fighter emblem says Proud Fire Fighter Sister In Law. Show your pride in your courageous brother in law or sister in law. Classic ladies' styling with a feminine neckline, sleeves and fit. 5.0 oz., pre-shrunk 100% cotton. Double-needle stitching throughout