Ortlieb Toptube-bag

"The Toptube-Bag from Ortlieb is the ideal companion for all cycling enthusiasts who value functionalityu00e4t and comfort. With a capacity of 2 liters, it offers enough space for snacks, smartphones or other small items of equipment. The magnetic lid closure allows you to open and close it easily and effortlessly, so that you can concentrate fully on the stowage. Thanks to the innovative Tube-Lock system, the bag can be quickly and easily attached to and removed from the top tube of your bike"
"The bag impresses with its waterproof construction and IP 53 protection class, which makes it ideal for all weather conditions. The bag lid has a practical silicone phone holder that is suitable for various smartphone sizes, as well as an integrated cable outlet that allows you to charge your devices while riding. So you can always stay connected and enjoy your tours to the full."
"The Toptube-Bag is made of robust, PU-coated nylon fabric that guarantees durability and resistance. An inner mesh pocket makes it easy to organize your equipment. However, please note that the maximum load should not exceed 1 kg to avoid material breakage. The distance between the bag and the stem must be at least 10 mm so as not to interfere with the steering."