polyester Imported Large Capacity & Organized - This 40-litre packable backpack contains multiple compartments. Includes a main zipper compartment for organized storage of your clothes and travel gear. 3 front pockets with a few extra pockets inside. Can let your pen, notebook, battery and other small items stored in order. Water-resistant and Durable Backpack - The Water-resistant fabric used to make this hiking backpack is lightweight, strong, durable and breathable. Stress points are reinforced by knotting to extend service life. Use SBS heavy duty metal zipper, very strong and free to glide zip. Comfortable Outdoor Companion - We take comfort and functionality into consideration when designing. Breathable mesh shoulder straps are unpadded but comfortable and breathable to help relieve shoulder pressure. The length of the shoulder strap is adjustable.Adjustable chest strap with WHISTLE buckle helps you secure the pack in place and send a message for assistance.The reflective strips on the foldable backpack make it an excellent companion for outdoor adventures during day and night. Ultra Lightweight Backpack And Compact (0.9pounds) - When not in use,just fold the foldable backpack into its own zip front pocket (only 5 steps,8*8.5 inch after folding) for easy compact storage,this will become a very small size.and unfold from pocket to backpack within just 10 seconds when you reach your destination.Please note that for ultra-light and foldable purposes, the back of the pack does not contain any padding. Multipurpose - MAXTOP 40L hiking backpack ideal comfort for day-to-day use or day trips, vacation, fishing, traveling, hiking, work, camping and Disney day trip. Great hiking backpack for women and men.If you have any questions about the product, please feel free to contact us.