The Thin Red Line represents camaraderie and sacrifice of firefighters and first responders to fires and disasters. Thin Red Line Long Sleeve T-Shirt features a distressed flag with a red line. Features A Distressed Thin Red Line Flag To Support Firefighters. Soft Yet Durable 60% Cotton, 40% Polyester Material. Tagless Neck Label For Added Comfort. The Thin Red Line Represents Camaraderie And Sacrifice Of Firefighters And First Responders.