ORTLIEB Seat-Pack 16.5 L is a spacious and waterproof saddle bag designed for bikepacking adventures, long-distance rides and outdoor trips. It attaches securely to the seat post using robust hook-and-loop straps and can also serve as a rear fender while riding.

The roll closure allows the volume to be adjusted according to the amount of gear you are carrying, while an integrated valve makes it easy to compress soft items for a more compact fit. The waterproof construction protects your belongings from rain and splashing water, making the Seat-Pack a reliable choice for demanding outdoor conditions.

The bag is compatible with most standard saddles with a round seat post up to 34.9 mm in diameter and can also be mounted on carbon seat posts. It is manufactured in Germany and comes with a 5-year warranty.