Expandable tactical camping and hiking backpack. It is constructed with high quality water resistant 600 Denier polyester material and includes heavy oversized zippers and tabs. The waist pack offers additional support to relieve stress from your back for a comfortable hike every time. The main compartment is expandable and MOLLE compatible which allows customizing the pack for your needs. This compartment expands an additional 5 inches, from 39 liters (2380 cu in) to 64 liters (3905 cu in). Two additional front compartments with organizers allow for tons of storage options. The side parachute buckles allow for tightening to provide a compact, easy to transport pack. This backpack is suitable for all your backpacking, hiking, camping, climbing, fishing, traveling, and all other outdoor activities. No matter what you're doing it ensures you will be prepared for your next adventure!