Attractiveness: You can use this great backpack for everyday use for traveling or as a military tactical assault backpack. It is completely versatile for any backpacking situation. You will love having so many different places to put all your stuff to keep it separate. It even has a water compartment. . Effective: There are plenty of compartments to store and organize your life. The bag holds 3 days worth of clothes along with toiletries and other essential gear. A sturdy, multi-functional backpack for combat, range, survival or hunting. It is water resistant and keeps everything dry in a storm. . Convenience: A great advantage is the accordion zipper or expandability, so you can shrink it down to a smaller bag when you don't need the extra space or expand it 5 inches deeper for more gear. You will be very impressed with our backpack. You can make it an emergency bag or 72-hour emergency kit and be the Christmas gift for travelers. . Design: 600 denier polyester is tear-resistant with great straps and awesome zippers. A nice is that the waist belt is detachable when you are not hiking, camping and trekking. It can easily hold 40 pounds internally. It has dimensions of 14.5" x 21" x 8", a capacity of 39 to 64 liters expanded, and weighs only 2.8 pounds. . After-s Warranty: If there is any quality problem, please feel to us, we will help you with a satisfied solution within 24 hours, Full quality warranty 30 days, 12 months for Accessories like zippers and lifetime customer .