[Naturehike] Folding Backpack 30D Silica Gel Nylon Fabric Waterproof PU2000 Brand new, unused. Shipping will be folded in half as shown in the 8th photo and sent via Yu-Packet Post. [Compact and Lightweight Rucksack] Weighing approximately 110g, it's surprisingly light. Made of nylon, it's lightweight, durable, and resistant to friction. It comes with an integrated storage bag, so you won't lose it. It can be stored compactly when not in use. [Simple Design with Abundant Features] Adjustable shoulder strap length. With a capacity of approximately 18L, it's widely useful for outdoor activities and travel. The lid opens wide, making it easy to put in and take out items. The interior space is large, allowing you to store plenty of essentials. Side pockets for water bottles and small items, making them easily accessible. [Enhancing Comfort, Improving Breathability and Fit] The shoulder area uses highly breathable mesh, providing a comfortable feel. This highly cushioned backpack is easy to use in any situation, such as day hikes, trekking, and outdoor scenes like camping. [Peace of Mind Even in Sudden Rain - Outdoor Backpack] When caught in the rain during outdoor activities or commuting, even with an umbrella, you can still get soaked. However, the fabric is water-repellent, providing peace of mind. [Rucksack Usable Regardless of Age or Gender] Safe for use on bicycles and motorcycles, and for long periods. Perfect for daily school or work commutes, as well as sports events, camping, hiking, travel, and outdoor activities.