This Mountain Bag is constructed of lightweight but sturdy rip-stop nylon. Weighs only 2 lbs. The Mountain Bag has foam padded back panel, padded contoured shoulder straps, large main compartment accessible via front quick-release buckle. Meanwhile, this Mountain Bag has extendable lid for larger loads with zippered top map compartment, sternum strap and adjustable padded nylon hip belt with quick-release buckles, two elastic mesh side pockets. Our Mountain Bag is of Burnt Orange/Slate color combination.