Aircee (TM) 40L~45L Multi-use Outdoor Sports Camping Hiking Daypack Bugout School Bag Tactical Army Military Camouflage Backpack This multifunctional backpack is ideal for outdoor enthusiasts or as a bugout bag, This backpack can hold a lot of stuff. The large zippered compartment is the perfect size for some changes of clothes, food, your larger items. There's even a large pocket in one of the sections that would be perfect to hold a laptop or tablet computer. The smaller zippered compartment on the front of the backpack that is perfect sized for your smaller items (survival gear such as a knife, fire starter, cell phone, wallet, sunglasses etc) or anything else small that you need quick access to. There are 2 side pouches that can be tightened to hold your water bottle or anything else you would want to store there. There are plenty of lops and attachment straps to hang and attached whatever you want from canteens, two-way radios, to Bluetooth speakers. Heavy duty zippers and straps. Shoulder straps and back padding have breathable mesh padding. Fully adjustable to fit just about anyone. Straps are adjusted using buckle closures. Size about :55X40X20cm (21.6x15.7x7.8inch), about 40L~45L.