MOLLE System: MOLLE external expansion system is designed for combining with other things,you can add drinking bags, accessory kits and other type of Molle bag. Carrying comfort:The thickly padded shoulder straps, the pelvic and chest closure that distributes the weight, and the back padding make the backpack comfortable even with heavy contents. For expansive expedition there are certainly ergonomic shaped (and more expensive) containers, but for normal trips and hiking tours, the backpack offered here is quite suitable. Design:it has a large main compartment,17.3 "laptop fits perfectly in this bag,two small compartments and multiple separate pockets. Occasion: Tactical Backpack Hiking Daypacks perfect for hunting, hiking, camping, traveling, climbing, trekking, cycling, running, tactics, mountain, outdoor saddlebag.