Versatile Modular Design - provide 3 way to use: Backpack, Waist bag or combination pack Reliable Quality - Breathable,waterproof and high strength abrasion nylon durable fabrics, with smooth zippers and puller, long lasting D-ring buckles, heavy duty straps 40L Large Capacity - roomy main pocket, zipped front pocket, detachable waist pack, two zippered side pockets (you can put 14 inch laptop or A4 magazine into the main pocket) External Expansion System - Designed to be used in combination with other equipment, you can load pockets, water bottle bag, accessory kits and other With sticker design on the front, you can stick favorite badge on it, create your own style Perfect for outdoor camping, hiking, hunting, trekking, traveling, etc Specification: Material: Tear-resistant Nylon Overall dimensions: approx 46 x 40 x 23cm / 18.11x 15.75 x 9.06 inch Single backpack size: approx 45 x 33 x 17cm / 17.72 x 12.99 x 6.69 inch Single waist bag size: approx 12 x 22 x 5cm / 4.72 x 8.66 x 1.97 inch Capacity: 40L Package Includes: 1 Piece Tactical Backpack