N Nevo Rhino Hiking Backpack: 25L/35L/40L/45L Waterproof Outdoor Day Pack, Polyester Imported [ Large Capacity Organized ] This travel backpack 40L ( 12.6*7.5*20.1 inch ) features with multi-compartment design includes one main zipped compartment, one zipped middle pocket, two zipped front pockets and two side pockets. There is a velcro to fix the water bag liner in the main bag and a water pipe hole on the top side of the backpack to assemble the water bag system. You can easily organize all your necessaries with this hiking backpack for men women. [ Durable Waterproof Material ] This lightweight backpack is made of high quality 210d tear proof and waterproof fabrics with smooth zippers. Pack and shoulder nylon strap is not easy to tear even if it bears heavy items. All stress points are reinforced with bar tacking to increase its longevity. We also give away a rain cover in the bottom pocket of the backpack. Regardless of the weather, just take this waterproof backpack for men women to ensure that all your items remain dry. [ Ergonomic and Comfortable Design ] The ventilated mesh padding shoulder straps and backside, along with the breathable system and lightweight design, make this backpack comfortable to wear even during long hikes. Keep it cool even in summer. The perfect day hiking backpack for outdoor sports. [ Unique Function Versatile ] Stay safe on your outdoor adventures with our camping backpack's unique reflective signs and elastic fasteners for trekking sticks. The chest buckle also doubles as a survival whistle for emergency situations. These various sizes of backpacks provide enough options for outdoor travel,camping,hiking and fishing. It meets the size requirements for most airlines. This camping backpack can also be used as hiking backpack, travel bags and business bag. [ Warranty ] If you have any problems, please reach out to us, we will reply within 24hrs. (We provide replacement services for quality problems within 1 year and lifetime customer service)