Ortlieb x Assos Seat-Pack 11L

Waterproof and compact, the Assos x Ortlieb Seat-Pack 11L keeps your gear dry and secure

Backcountry Gearhead® Recommendation:

"This pack is my go-to for minimalist bikepacking setups. It hugs the seatpost well, doesn´t sway, and I’m always surprised how much I can actually stuff inside. The roll-top closure keeps my gear dry, even when I’m hammering through unexpected weather. And the integrated air valve is clutch for compressing bulky layers when space is tight."

We never hit the road without the Assos x Ortlieb Seat-Pack 11L on our rig. Merging Ortlieb´s bombproof waterproof tech with Assos’s sleek design sensibility, this saddlebag is built for serious multi-day epics and minimalist day missions alike. Whether we´re chasing gravel loops or heading out for a weekend away, the 11-liter capacity is perfect for extra layers, tools, or a minimalist overnight kit.

Crafted from tough, waterproof ripstop nylon and featuring a roll-top closure, it’s engineered to keep essentials dry in any weather. Hook-and-loop fasteners ensure a rock-solid attachment to the seatpost, while the integrated valve lets us purge excess air to cinch it down tight. A daisy chain runs under the bag for tail light attachment, and reflective details add a layer of visibility for pre-dawn or post-sunset rides.

Details

• Waterproof saddlebag for bikepacking and mixed-terrain touring
• Ideal for gravel grinders, overnight rides, and multi-day tours
• Roll-top closure with compression valve keeps contents dry and compact
• Heavy-duty hook-and-loop straps for secure, sway-free seatpost mounting
• Daisy chain underneath for fixing lights or extra gear
• Reflective elements for added visibility in low light
• Constructed from durable PU-coated ripstop nylon
• Compatible with round seatposts 34.9mm and larger
• Item #OLBA05Y

Tech Specs

Material

[face fabric] nylon, PU coating, [lining] polyethylene

Volume

11L (671cu in)

Mount

seat

Closure

roll

Dimensions

10.2 x 15.7 x 5.9in

Claimed Weight

12.2oz

Activity

road cycling, gravel, commuting

Manufacturer Warranty

limited 5 year