The 3V Gear Supra Tactical Hiking Backpack is a huge, top-filled bag that can hold everything you need for a camping adventure, including a hammock, sleeping bag, tent, and cooking utensils. Its name comes from the Latin word for ‘Above’ for which it was designed to look like a military top opening backpack. The hiking backpack is in the shape of a tube, and it has a circular top opening with a reinforced frame inside to keep its shape.