DURABLE. HEXIN backpack is made with high quality Waterproof and tear resistant Nylon material. Durable Two-way Abrasion Resistant YKK metal zipper on the surface of the backpack. Most important points are reinforced with bar tacking for increased longevity. You can use for several years.</br>LIGHTWEIGHT(0.5 Pounds) and ROOMY(33 Liters). Greatly save space.Many compartments pockets for storage-avoid extra fees. In additions?? they are 2 phone pockets on the s"face of the backpack.</br>COMFORTABLE AND CONVENIENT TO CARRY. We have 20 years of experience makes the Most Comfortable Wide Breathable Mesh Shoulder Straps.Easy to Adjust the length and lock firmly.Simply fold or unfold from your luggage.</br>COMPACT. Folds into zippered inner pocket to fit anywhere. Unfolds from pocket to backpack.This backpack is perfect for day-to-day use or occasional travel?? and great gift for everyone.Everyone deserves to have a backpack on every trip.</br>ATTENTION PLS: To ensure the quality??pls note that our brand. This items ONLY fulfilled by Amazon and seller "XIN"store.If offered by other sellers in this listing will be different item.</br></br>Product Description</br></br><b>About HEXIN Package Backpack</b><br>Unique lightweight design??waterproof and tear resistant Nylon material.comfortable and very convenient to carry??adjustable breathable straps??Many compartments pockets??Durable Two-way Abrasion Resistant YKK metal zipper and so on.The best foldable camping outdoor travel biking school air traveling carry on backpacking.This backpack is your best choice.<br><b>How to find the perfect size?</b><br><b>STEP ONE:</b>depending on your use of and demand for package backpac