The most technical ruck in our day pack line, ideal for such activities as day-long climbing, pushing a 14er summit, or that get-away fly fishing trip. The slim profile expands to provide an astonishing 38 L of capacity for those extra long days avoiding the rat race. Made with recycled PET, the Centennial 30 utilizes 16 recycled 16-ounce plastic bottles. Save the planet, go backpacking! *Special Note - Sangria Color - shoulder harness ergonomically fit specifically for women.