The waterproof backpack is made of high-density nylon, it is waterproof, scratch-resistant and tear-resistant, which can protect your backpack usefully. It is extremely suitable for rain whether, hike, cycle and travel. Product size: 91*71cm/35.83*27.95inch. Capacity: 45L. Main material: Waterproof polyester fabric and nylon. Protecting your bag from getting wet in the rain. Suitable for in outdoor, traveling, riding, climbing. There are have scratch-resistant and tear resistance faction.