Come and see our amazing products. The Nylon sport Hiking Backpack use nylon cloth made which have good power for waterproof.The volume about 32L.When you have a hiking you will not worry your things in the bag.The design add many small conveniency for you when you have a hiking.Print your logo on the bag is a great idea then many people will see your publicity. Pls confirm further with us if any query about packing info, inventory status and time schedule.