ORTLIEB Seat-Pack is a spacious, waterproof saddlebag designed for bikepacking, touring and long-distance cycling adventures. With an 11-litre capacity, it provides plenty of space for clothing, equipment and other essentials while keeping contents protected from water and dirt.

Hook and loop straps provide secure and convenient attachment to the seat rails and seatpost. Extending backwards from the seatpost, Seat-Pack also functions as a rear mudguard, helping protect the rider from dirt and splashes.

Roll closure allows the volume of the bag to be adjusted according to the amount of gear being carried. An integrated air release valve makes it easy to remove trapped air and compress soft equipment for a more compact fit.

Seat-Pack is suitable for hybrid bikes, mountain bikes, road bikes and e-bikes. The bag can also be mounted to carbon seatposts and is suitable for round seatposts with a maximum diameter of 34.9 mm.

A daisy chain on the underside provides a convenient mounting point for a rear light, while elastic cord fixations on the upper outer side allow quick storage of additional equipment. 3M Scotchlite reflectors improve visibility in low-light conditions.