I have only taken this bag on one trip so far but I'll update the review if needed. Since buying a pair of Ortilieb panir bags I have total faith in their products. Totally waterproof, very durable and the fact they sell replacement parts if you need them. This seat pack is no different, durable, waterproof and surprisingly light. I wanted a seat pack with plenty if capacity, I never filled it completely but it seems very steady on the bike, stuffs down well so you could feasibly use it for quick trips. However you really do need a minimum of 15cm to strap it in properly. Initially my saddle was too low and the bottom strap wouldn't wrap around fully, meaning that it would detach from the seat post everytime I hit a bumpy section if road, obviously very annoying. So I wouldn't recommend it to anyone who can't comfortably ride a seat tube less than 15cm high.
Product Details
ORTLIEB Seatpack 16.5L
An easy and convenient way to add extra carrying capacity to a bike, ORTLIEB’s 16.5 litre Seatpack attaches to the saddle and seatpost, making it compatible with most frame configurations and sizes. The roll closure not only keeps the bag watertight but also lets the volume be adjusted, ensuring that the contents are held securely no matter how full or empty the pack is. An air release valve allows excess air to be purged, further stabilising the cargo and keeping pack size to a minimum. Light items like a windproof jacket can be stashed using the elastic cords on top of the bag, keeping it easily accessible without having to unpack the bag’s contents. Safety is taken care of by the 3M Scotchlite reflectors and light attachment points whilst the seatpack also acts as a mudguard in inclement weather.
Features
- Capacity 16.5 litres
- Spacious, waterproof saddlebag with roll closure
- Ideal for bikepacking, alp crossing and touring
- Lightweight sturdy PU laminated ripstop nylon
- Variable volume adjustable from 8 to 16.5 litres
- 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 hook and loop fasteners with a soft grippy surface ensure slip-free seatpost fixation
- Sturdy PE inner stiffener
- Elastic cords on the outside of the bag for quick fixing of light gear
- Saddlebag acts as a mudguard
- Can be mounted to carbon seatposts
- Daisy chain with seven fixing locations runs along the underside of the bag, allowing a rear light to be fixed
- 3M Scotchlite reflectors
- Suitable for round seatposts with a diameter of maximum 31.8mm
- Dimensions(H x W x D): 30cm x 64cm x 22cm
- Claimed manufacturer’s weight: 430 grams
Specifications
- Composition
- 100% nylon
- Bag Type (Bags & Luggage)
- Seatpack
- Primary Intended Use (Bags & Luggage)
- Bikepacking
- Primary Material (Bags & Luggage)
- Nylon
- Bag Mount Position
- Saddle
- Bag Volume (Bikepacking, L)
- 16-5 L
- Bag Volume (L)
- 16-5 L
- Carry / Mounting System
- Saddle Mount
- Closure Type
- Roll-Top
- Compression / Stabilisation Straps
- Yes
- Discipline Compatibility
- Gravel
- External Dimensions (cm)
- 30-64-22 cm
- Laptop / Device Compartment Present
- No
- Mounting Method
- Strap-On
- Number of Main Compartments
- 1
- Product Weight (kg)
- 430 kg
- Waterproof (Yes/No)
- Yes
- Expandable Volume Feature
- Yes
- Light / Reflector Attachment Points
- Yes
- Reflective Details
- reflective-accents
Reviews
Seems very well made. While it is 11 litres, due to the cone shape it can not hold items as easily as a pannier for example. It does not mention on this website, but you should check the height of your seat post to see if this or the larger version will fit.
Care
Shipping & Returns
Free UK delivery on orders over £50. Orders are dispatched within 1-2 working days and typically arrive 1-2 working days later.
Return unused items in their original packaging within 30 days of delivery. Return postage is £3.50.
Q & A
2 questions answered
What distance do you need between the saddle and the rear wheel to mount this without it rubbing?
Hi There, This is not information we have but looking at the dimensions I would say 30cm to be safe Many thanks Joe W
can you mount this to an aero seat post?
Hi there, Yes this should work with an aero post, Many thanks Joe W





