Lightweight Travel Foldable Backpack Blue. Crafted in lightweight nylon that is tear and water-resistant with breathable mesh shoulder straps for comfort and roomy enough to hold your essentials and probably even a few things you don't really need, It also features mesh pockets for water bottles and a large front pocket with a pressure strap with a click lock to keep everything secured, best of all, you can fold it away when it's not being used. How convenient is that?