Our big capacity backpack has same opening design in the top and bottom, it can be opened by top or bottom as well as inside, very convenient. Arounding the backpack is designed with molle system for hanging more different equipments. Bottom features harden lining for good support. Back padded with breathable cushion, very comfortable to carry, suitable for long-time outdoor use. And the waist is with a fix system for fastening, detachable. Size: 70*39*30cm.