The Pannier is processed very clean and solid. My doubting eyes fell solely to the mounting derselben- four Velcro straps. And that should keep? After the first few kilometers, rough roads and the frequent view of the presence of the bag on the luggage rack clarity was holding it and how! No wobbling or slipping. If I had not thought of. The internal volume is surprisingly large and can be extended by a further fold by Zip. The cup holder keeps reliable a 0.5L water bottle that does not slip out even in strong jolting. In addition, fit one or two thin jackets on the bungee covering on the lid. More storage space you do not need for day trips. Supplied with a rain cover (good idea) and a shoulder strap are also (I've never used). Zusammenfassend- a successful construction!