Personalized Proud Firefighter Sister In Law Baby Bodysuit. Thin Red LineBaby Bodysuit - 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. Our one piece baby bodysuit make great gift for newborns, babies, infants, baby showers and expectant moms. An ideal gift for any new parent who will want one in every color.