Cvlife 60L-50L Large Tactical Backpack For Men, 900D Heavy Duty Bug Out, Black Expandable Design: Our backpack is designed with an expansion function to meet your capacity needs in different scenarios. The original size is: 20 x 13.5 x11.5 inches, Capacity: 50-60L; The expanded size is: 20 x 13.5 x14 inches, Capacity: L; Just need to open the zipper on the back to expand the backpack from 50L to 60L, which is very convenient to operate. High Density: Our backpack is made of 900D X 600D PVC material, which is tear-resistant and abrasion-resistant, able to withstand extreme situations and heavy loads, ensuring that the backpack maintains structural stability and durability even when fully loaded. Multifunctional Compartments: The expandable backpack has 5 zipper Pockets and multiple built-in mesh compartments for easy organization and quick access to equipment, such as laptop compartments, water bladder compatible system, key chains, etc.; It also comes with 1 detachable water bottle bag (8 x 3.5 x 3.5 inches) and 1 detachable zipper side pocket (8 x 2.5 x 4 inches) MOLLE System and External Accessories: The front and sides of the backpack are designed with MOLLE straps, and are equipped with Tactical accessories: 4 x D-ring Locking Clips, 2 x Web Dominator Elastic Strings, and 1 x USA Flag Patch, which make it convenient for you to hang a variety of outdoor equipment. Breathable Padding and Water Bladder Compatible: The back and shoulder straps of the backpack are designed with breathable padding to allow air circulation and provide soft support. There are two water bladder fixing strips, a water bladder outlet on the top of the backpack, and a hose clip on the shoulder straps, which are compatible with the water bladder. Applicable to Multiple Situations: The versatility and durability of the large-capacity tactical backpack are very practical in a variety of scenarios. The diversity of mounting makes it easy to carry items. Whether it is a tent, a water bottle, or other equipment, you can find a suitable mounting position. It is very suitable for hiking, mountaineering, hunting, camping, and traveling.