Ultra-durable and easy to pack: This lightweight travel backpack is made from tear-resistant and scratch-resistant fabric and weighs only 0.55 pounds. It folds into a compact 7-inch x 7.1-inch pouch and unfolds to 15.3 inches x 3.9 inches x 9.4 inches. Innovative shoulder straps: The breathable shoulder straps feature an integrated zippered cell phone pocket with an earphone jack on the left and a drawstring pocket on the right, with mesh padding to reduce pressure and ensure comfortable carrying. Two-way adjustable chest strap: Adjustable vertical height and circumference allow the backpack to fit snugly against your back, suitable for various activities such as hiking, climbing, running, or cycling. Multi-functional compartments: 10-liter capacity includes a main compartment, a front elastic mesh pocket, a front zippered pocket, two side water bottle pockets, a rear anti-theft zippered pocket, and reflective strips for security. Versatile: Suitable for both men and women, it can be used as a hiking backpack, travel backpack, camping backpack, cycling backpack, or commuter bag. Weight: 0.53 pounds.