Come and see our amazing products. The Nylon Sport Hiking Backpack uses nylon cloth made which has good power for waterproof. The volume about 32L.When you have hiking you will not worry about your things in the bag. The design adds much small conveniency for you when you have hiked. 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.