[Dimension: 17.7" x 12" x 7" 35L Large Capacity: 3 Main Compartments + 3 Accessories Pocket 1 padded laptop sleeve fits for 15.6" laptop. Military backpack is made of 900D nylon material with water resistant lining dual waterproof & scratch-resistant. Molle System: Allows you to easily attach outdoor gear tactical pouches and sleeping pad; Frontal loop field for path adhesion. Tactical backpack can be used as 3 day assault pack range bag survival backpack army backpack trekking backpack or day pack for daily use. Backpack with double-stitched Heavy duty zippers and utility-style cord pulls Side and front load compression system Ventilated mesh padded back area & shoulder strap breathable and comfortable.]