The space you need: This military tactical backpack size approx: 45cm x 33cm x 29cm dimensions and 45L capacity of suitable size, this backpack has room for all your essential equipment. Large multi-layer interior storage compartments can accommodate a large amount of outdoor equipment, and also meet your daily travel needs. Suitable for fitness, outdoor travel, hiking and other outdoor activities.Durable and Waterproof: Military grade backpack is made of 900D polyester material, tactical assault backpack is reinforced and double stitched at all stress points. Strong and durable and our special coating makes our training backpack waterproof and scratch resistant.Modular design: backpack strap system on the front and sides, designed to be used in combination with other equipment, you can attach additional bags or gear as a tactical backpack; as kettle bag, walkie-talkie bag, first aid bag, torch bag, sundries bag and also sleeping bag and mat.Multiple Compartments: Designed with 5 compartments to store different things: two front pockets for small items, two large compartments with built-in zipper pocket and mesh pocket for large and important supplies, dedicated laptop/device compartment (17''), A hidden back pocket for frequently used items, the military army backpack opens flat to 180 degrees for easy packing/unpacking.COMFORT AND FUNCTION: This sports fitness backpack with double stitching, padded shoulder straps and mesh back area for added comfort, ventilation and strength during travel. High quality brand two-way zipper, all compartments have two-way openings for easy access.