The spacious saddle bag is perfectly suited for a change of clothes and other equipment. The packing volume varies between 8 and 16.5 liters thanks to the adjustable rolling closure. Regardless of how epic the terrain is, the Seat-Pack always stays in the same shape and in the right position on the bike. This is due to the exclusive Ortlieb welded construction, innovative compression system, and super sticky seat-post straps.