Ortlieb Seat-Pack Medium


In stock

SKU: ORTSEPA Categories: , Tag:
Global Trade Item Number (GTIN) : 4013051051668

The ORTLIEB Seat-Pack M is compact and spacious at the same time.


The ORTLIEB Seat-Pack M is compact and spacious at the same time. Offering a payload of 11 liters, the waterproof seat bag offers alot of stowage space for sizeable items that are not so heavy such as clothing and personal care items. The inside and bottom of the bag are stiffened, which ensures stability even in bumpy terrain. Thanks to the roll closure, adjustable straps and an additional compression valve, you can reduce your loaded Seat-Pack to an extremely compact size.

Outfitted with highly adhesive Velcro straps, the waterproof Seat-Pack M easily attaches to your bicycle saddle rails and seatpost. And given that you only need 6 cm of available space on your seatpost, the Seat-Pack is also ideal for smaller frames, full-suspension MTBs and bikes with dropper seatposts. The attachment to the saddle rails reliably holds the Seat-Pack M in the right position, essentially turning it into an effective fender.


  • Compact, waterproof saddlebag with roll closure
  • Ideal for bikepacking, alpcrossing, touring
  • Ideal for small bicycle frames and full suspension mountain bikes
  • Light weight sturdy PU laminated rip stop nylon
  • Air release valve to easily purge the bag of trapped air, allowing for tighter compression
  • Heavy duty fabric used at the saddle rail mounting location
  • Heavy duty Velcro with a soft grippy surface ensure slip-free seat post fixation
  • Sturdy PE inner stiffener
  • Saddlebag acts as mudguard
  • Can be mounted to carbon seat posts
  • Specs

    • H x W x D: 26cm x 40cm x 15cm / 10.2″ x 15.7″ x 5.9″
    • Weight: 325g / 11.5oz
    • Volume Capacity: 11L / 671 cu in
    • Weight Capacity: 3kg / 6.6lbs


    All Ortlieb Bags are backed by a 5-year warranty against defects in material and manufacturing.

    Please see our Warranty page for the details of our warranty process.

    Customer Reviews
    5.0 Based on 4 Reviews
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    Filter Reviews:
    Anna G.
    US US

    Great air and water tight pack

    Really great seat pack. Doesn’t wiggle or shift at all. Completely air and water tight

    Jace W.
    US US

    Great bag.

    Attaches easily. Stays put. Keeps things dry. What more can I say. If I had any complaint it would be the almost incompatibility of a roll top dry bag and a down sleeping bag. It’s always a game of shoving the sleeping bag in and trying to quickly close up the dry bag before the sleeping bag expands again. However the roll top is a tried and true way to keep your stuff dry which is way more important.

    Adam G.
    US US

    German designed and German made. Enough said.

    The quality of this pack cannot be understated. We rode nearly 400 miles and not only did everything stay completely dry, the pack folds and compresses to the point where there's little air so nothing is flopping around. Additionally, the straps are designed such that the pack is effectively immobile once attached and cinched down tight. If I have any criticism at all is that, at least for my saddle, feeding the saddle rail rail straps up through the saddle was a bit of a pain.

    natalie j.
    CA CA

    Great customer service

    Very knowledgeable staff and a great selection of gear.