The Seat-Pack 11L from Ortlieb is a saddle bag for bikepacking. Bikepacking means that you pack your bike, put your luggage on it and set off, away from the road, longer or shorter. To do this, you need a lightweight, all-terrain bike and luggage - as well as a waterproof, compact bag for your luggage, such as the Seat-Pack M from Ortlieb: a saddle bag with a roll closure and variable volume of up to 11 litres, which does not require a luggage rack. Its volume offers you storage space for bulky, but not overly heavy luggage such as clothing and washing kit. The base of the bag and the inside are reinforced, which provides support and stability even on bumpy terrain. The loaded bag can be closed extremely compactly - with a roll closure and adjustable straps. A valve ensures quick and easy compression so that your economical packing is rewarded. The Seat-Pack can be mounted on any bike with a fixed seat post and also acts as a mudguard. It is attached with strong Velcro fasteners. Just six centimetres of free space on the seat post is sufficient, which is why this saddle bag is ideal for smaller frame sizes, fullys and bikes with lowerable seat posts.