The Ortlieb Back Roller City pannier bags are the most famous of the brand. It is perhaps Ortlieb\'s flagship in terms of bicycle saddlebags. High quality, resistant, visible and waterproof. And with a capacity of 20 liters each.You don\'t always have to take a multi-day excursion to make use of the saddlebags on your bike. Ortlieb Back Roller City is flexible and adapts perfectly to moving around the city on a daily basis. They are ideal for shopping, the gym and for going to college or work. In them you can save what you need for your daily activities. They also come with bright reflectors made of 3M Scotchlite reflective material, on both sides of the bags, to make you more visible. If one day you don\'t need to carry both saddlebags, you can easily remove one, and take only one on the bike without a problem.