1.[42L Backpack] Tactical Backpack Size Approx. 15.36'x 19.69'x 11.81' (WHD), Capacity: 42L. Large capacity assault pack, allowing you to carry all your tactical gears. It can be used as small 3 day assault pack, emergency backpack, bug out bag backpack, combat backpack, range bag, survival backpack, army backpack, molle emt backpack, EDC outdoors backpack, hunting backpack, hiking backpack, camping backpack, travel backpack or day pack for daily Use. 2.[Versatile With Multi-Compartment]Our Military Backpack has 2 Main large compartments, 2 Small compartments in front, and 1 back compartment. The large compartment has an elastic strap to hold laptops or anything you don't want to move around. Each compartments has mesh pocket or zipper pocket to help with organization. Y-Strap on the top allows you to hold more items, like sleeping pad or sweatshirt. And it's much more convenient to put your gadgets into the bottom side pockets. 3.[Sturdy & Comfortable] With dual zippered closure and made of high density double-stitched 900D Oxford & Nylon fabric, this pack is sturdy water-resistant.The back area & shoulder straps with adjustable chest strap are ventilated mesh padded design, breathable comfortable. Sides and bottom load compression straps system, to adjust and tighten the backpack. The thick mesh padding back area and shoulder straps will not pinch you under heavy duty. 4.[Military MOLLE System]The molle webbing system of tactical backpack is designed for convenient for attaching additional Molle tactical pouches or more gears, 3 Rows of molle velcro areas in front of the backpack, The front & both sides & bottom & shoulder straps come with molle attachment straps, the shoulder straps with two D-rings to hang somethings, and the straps at the bottom can be used to hold a tent & sleeping pad or other outdoor gear.