Product Description Tear Resistant & Waterproof: The foldable backpack is made of tear-resistant fabric and waterproof nylon: 30D nylon material can protect the items in the backpack from rain and water drops, and the tear-resistant fabric makes the backpack flexible and durable, suitable for Various extreme outdoor environments. Only 80g: The ultra-light backpack only weighs 80g, and the folded size is only 12 x 9 x 4cm, which is specially designed for easy carrying when traveling outdoors. After the backpack is unfolded, the maximum unfolded size of the backpack can reach 40 x 26 x 14cm! Practicality, Durability and Portability: The foldable travel backpack is designed with a practical structure and bright colors: 1 large-capacity main pocket, 1 front pocket for placing mobile phones, cash, passports, keys, small items, etc., 1 side pocket for umbrella or water bottle. We believe: practicality, durability and portability are what you need most. Minimize Shoulder Stress: We use the concept of ergonomics to reduce the burden on the shoulders and back of travelers. Therefore, we have improved the breathability of the shoulder straps from the material, and reinforced the stitching of the shoulder straps by hand, which greatly reduces the pressure on the body. Suitable for Outdoor Activities: The foldable backpack is perfect for travel, day trips, business trips, vacations, camping, hiking, cycling, beach, etc., a surprise gift for everyone. Before going out, you need to prepare this outdoor backpack: The portable backpack has the basic functions of an ordinary outdoor backpack and ensures high strength and durability. However, foldable backpacks are more about meeting your unexpected needs. When your main backpack can't fit more or is accidentally damaged, this easy-to-carry backpack can come in handy for your immediate needs. Product Name: Portable Foldable Outdoor Backpack Item material: waterproof and tear-resistant fabric Item weight: 80 grams Item size (folded): 12 x 9 x 4cm Product size (expanded): 40 x 26 x 14cm Compartments: 1 main compartment, 1 front pocket, 1 side pocket