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). Versatile Backpack: This travel backpack is suitable both for men & women. The large capacity of 40L provides enough space for outdoor travel,camping,hiking and fishing. It meets the size requirements for most airlines. This camping backpack can be used as hiking backpack, travel bags and business bag. Ergonomic and Comfortable Design: Lightweight travel backpack with the ventilated mesh padding shoulder straps and backside, breathable system and lightweight design are the perfect day hiking backpack for outdoor sports. This humanization design helps to reduce fatigue during a long day of hiking even when the hiking backpacks is completely full. Keep it cool even in summer. Unique Function Design:The camping backpack is printed with reflective signs to remind safety. The sides of the backpack have elastic and fasteners that can hold two sets of trekking sticks or adjust the webbing according to needs. And chest buckle designed as a survival whistle for quick and easy use in case of emergency. Durable & Waterproof Material : Waterproof 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. Also, we also give away a rain cover,which is in the bottom pocket of the backpack. so it is no doubt that all your things will keep dry during rain. Just take this outdoor backpack, no matter the weather. Large Capacity Backpack: This hiking backpack has 40L storage space, dimension: 12.6*7.3*21.3 inch. This 40L backpack 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 essential stuffs with this backpack for men women.