1. THE SPACE YOU NEED: This Military Tactical backpack size appro: 18inch x 13.2inch x 11.6inch dimensions and appropriately sized 45L capacity, this pack has room for all of your essential gear. Large multilayer interior storage compartments can accommodate a lot of outdoor equipment, and also meet your daily travel needs. Suitable for fitness, outdoor travel, hiking and other outdoor activities 2. DURABLE WATERPROOF: Military grade backpack is made from 900D polyester material, tactical assault backpack is reinforced and double stitched at all stress points. Resistant and tough and our Special coating makes our training backpack both water resistant and scratch proof 3. MOLLE MODULAR DESIGN: Molle backpack webbing system on front and sides, designed to be used in combination with other equipment, you can attach extra pouches or gears as tactical backpack; such as kettle pouch, walkie talkie pouch, first aid pouch, torch pouch, sundries pouch and also the sleeping bag and mat 4. MULTIPLE COMPARTMENTS: designed with 5 compartments for storing different stuff: two front pockets for small items, two large compartments with built in zippered pocket and mesh pocket for big and important supplies, dedicated laptop/device compartment (17''), a hidden back pocket for frequently used items, army military backpack opens flat to 180 degrees for easy packing/unpacking