High Quality Water and Tear Resistant Nylon Material Perfect size small backpack for any trip! DURABLE – Made of High Quality tear and water resistant Nylon Material. Heavy duty SBS metal zippers can adapt to long-term use. Never worry about the broken zipper! COMPACT – Can be folded into an inner zipper pocket with Sandwich size – Easy to carry and store. Designed to easily pack it in your suitcase for use at their destination as an extra bag for the trip ULTRA LIGHTWEIGHT & ROOMY – 25L capacity with only 0.6lb! Spacious enough to carry a day??s worth of necessities. Avoid overweight baggage charges by simply unfolding it from your luggage and using it as a carry on for your excess baggage. A must-have whether a daytrip or a long-way tour MULTIPURPOSE – Ultra-light. Ultra-durable. Ultra-awesome. The backpack is perfect for day-to-day use or day trips, vacation, travel, day hikes, school, camping or shopping etc. A great gift for every travel enthusiast 100% Satisfation Guarantee??If anything at all goes wrong with your backpack, you have 90 days to request a replacement, completely for free. We hope our ZOMAKE backpack can accompany you for a long time. Add your ZOMAKE backpack to cart, and enjoy taking it on your upcoming trips!