Ortlieb Toptube-bag

"The Toptube-Bag gives you quick access to your snacks, smartphone or other small items of equipment, because the magnetic lid closure allows you to open and close it easily and quickly so that you can concentrate fully on the road. Thanks to the innovative Tube-Lock system, you can attach the bag to the top tube in no time at all and remove it again just as quickly. The smart system can be attached directly to the threaded holes on the top tube or flexibly attached using rubberized perforated straps if there are no threads available. The bag lid not only has a silicone mobile phone holder that can be used for various smartphone sizes, but also has an integrated cable outlet that allows you to charge your devices on the handlebars while riding. Inside the PU-coated bag made of robust nylon fabric, an inner mesh pocket ensures easy organization of your equipment"