Cotopaxi's Allpa collection consists of heavy-duty duffels and packs ready to travel with climbing gear one week and winter clothes the next, and the Allpa 70L Duffel is the largest in that collection, making it the best option for the biggest, grandest excursions. Cotopaxi made it out of durable Ballistic paneling and TPU coatings that give it an intense shine as well as extreme resistance against weather and weathering. You can carry it like a messenger bag or like a backpack.