Outdoor Backpack Hiking Bag Camping Travel Rucksack Sports Waterproof Pack Capacity: 40L. Adjustable carrying system makes it possible for users to adjust the backpack to optimal position and reduce fatigue owing to heavy load effectively. Main Compartment: 45 * 25* 7cm/ 18 * 10 * 2.7in (Height * Width * Depth) Chest belts can adjust distance between the two shoulder straps and strengthen the stability of the backpack. The waist belts which can disperse the load to the lumbar area more effectively. It makes the backpack more comfortable. Enhanced back support for ventilation and comfort.Can be used for Camping, Hiking traveling Bag