Our founder Camille Poirier, filed a patent for the original Duluth pack on November 10th, 1882. Little did he know, his brilliant design would revolutionize the canvas bag industry, with the patent being approved December 12th, 1882. Celebrate our history with these special, limited edition Pourier shirts. The front of the shirt was inspired by the brass tags featured in the original packs, while the back of features a graphic from the original patent, drawn by Camille Poirier himself. These shirts not only represent our brand but our 135 years of our heritage.