This lightweight travel backpack weighs only 0.73 pounds but has a capacity of 10 liters, allowing you to carry a few essentials with you. Made of thickened waterproof nylon material and high quality SBS zippers. Durable and not easy to tear. The fabric is waterproof and quick drying, meeting basic outdoor needs. There is an adjustable sternum strap, two stabilizing shoulder straps, a survival whistle and sunglasses holder.