Created as a tribute to our nation’s courageous firefighters, Spyderco’s Thin Red Line knives are distinctive expressions of our workhorse lightweight models. Their defining feature is their unique handle design, which showcases black fiberglass-reinforced-nylon (FRN) handle scales accented by a bright red lining and a matching red backspacer. This color theme symbolizes the thin red line first responders represent between the normalcy of our daily world and the chaos of life-threatening emergencies.