Enjoy military style and design at its finest with these Military Rucksacks. Why do we say rucksack when the layman says backpack? Because this isn't just your basic backpack. This rucksack is water-resistant, one of the most durable sacks in the market, can also carry up to 35 liters, and is designed with authenticity in mind. It even has a velcro patch to attach your military badge.