Like this site? Help us to make it better.


Ortlieb Seat-Pack QR



Really well-thought-out and well-made seatpack that's easy to use and simple to fit and remove
Superbly made
Fully waterproof
Very stable in use
Simple to remove
Not compatible with all saddles or saddle positions
Fairly heavy for a seatpack

At every product is thoroughly tested for as long as it takes to get a proper insight into how well it works. Our reviewers are experienced cyclists that we trust to be objective. While we strive to ensure that opinions expressed are backed up by facts, reviews are by their nature an informed opinion, not a definitive verdict. We don't intentionally try to break anything (except locks) but we do try to look for weak points in any design. The overall score is not just an average of the other scores: it reflects both a product's function and value – with value determined by how a product compares with items of similar spec, quality, and price.

What the scores mean

Good scores are more common than bad, because fortunately good products are more common than bad.

  • Exceptional
  • Excellent
  • Very Good
  • Good
  • Quite good
  • Average
  • Not so good
  • Poor
  • Bad
  • Appalling

If you're looking for a solution for small-to-medium loads that's simple to fit and move between bikes, and is stable in use, then the Ortlieb Seat-Pack QR ticks all those boxes. It has the best fitting system of any seatpack I've ever tried, and is very well made and easy to use. The only major downside is that it won't work with all saddles, or all saddle setups. Oh, and the cost!

In essence, the Ortlieb Seat-Pack is a roll-top closure bikepacking bag similar to many others you'll find, albeit a very well-made one constructed from heavy-duty waterproof fabrics. The main difference is in the way that it mounts to your saddle and seatpost.

2024 Ortlieb Seat-Pack QR 13 L - logo.jpg

On top of the bag there's a rigid nylon plate, and two hooked levers that fit snugly around your saddle rails. They click into place and they're attached to two of the five compression straps on the bag, so when you've tightened everything up there's no way for them to work loose. You can move the position of the hooks fore and aft along tracks in the platform to fine-tune your bag's fit.

2024 Ortlieb Seat-Pack QR 13 L - adjustable mount.jpg

A Velcro strap secures the bag to your seatpost, and there's a fitting kit to allow you to use it with a dropper post.

2024 Ortlieb Seat-Pack QR 13 L - seat post strap.jpg

The main benefits of this mounting system are twofold. Firstly, the bag is extremely stable in use: there is no sideways sway at all to speak of, and the hooks hold it tightly against your saddle over rougher terrain. It's also very easy to fit and remove; there's no fiddling straps through the saddle rails, and nothing gets left behind when you take it off, which takes less than ten seconds.

It really is a very nice bag to use, if you can make it fit. And it's worth reading the fitting notes (copied in the report below) because there are a few provisos.

Ortlieb QR Seatpack fitting instructions.jpg

Carbon-railed saddles are out, for a start, and anything that has a non-standard (ie, not round) saddle rail. Also, there needs to be sufficient rail behind the seatpost clamp for the hooks to engage. I generally found with my road/endurance bikes that the hook position was more or less as far forward as the tracks would allow, but I tend to favour an inline or low-setback seatpost so there's not as much room there. I managed to make it fit to all the bikes in the shed, though, with the exception of one, which has a layback post that I've been too lazy to swap out, and the saddle shunted forward a bit to compensate. There wasn't enough rail protruding on that one.

Pack & strap

The bag is rated for a 5kg load and has a 13L capacity, so plenty for a few spares, a change of clothes and some other bits and bobs. The roll-top means you can cinch it down to the size of whatever you're carrying, and there's a useful and simple-to-use valve to expel the air as you go.

2024 Ortlieb Seat-Pack QR 13 L - detail.jpg

The five compression straps (four on the sides and one at the back) keep everything neat and all have strap tidies for minimum flappage.

2024 Ortlieb Seat-Pack QR 13 L - 2.jpg

At the back there's a ladder affair that you can hook a rear light into…

2024 Ortlieb Seat-Pack QR 13 L - rear.jpg

…and on top there's a bungee for strapping your sandals or 24/7 croissant to the outside.

2024 Ortlieb Seat-Pack QR 13 L - straps and bungee.jpg

Underneath there's a plastic panel that stops tyre scuffs on a suspension bike, and also serves as a rudimentary mudguard.

In use

Once everything is done up, the bag is fully waterproof, and I've used it in the worst spring conditions imaginable for hours and hours and hours (don't ask) with no water ingress at all.

The usual proviso with seatpacks and getting stuff out applies: there's only one way in, and it's a bit of a faff to open the bag up and get at stuff that's near the bottom, so thought is required when you're working out your packing order. Having said that, because there's no sway it's not as important to have the heavy stuff right by the seatpost, so your toolpack, for instance, can be nearer the top, rather than buried.

2024 Ortlieb Seat-Pack QR 13 L - open.jpg

All in all, this is probably the best seatpack I've tried in terms of performance on the bike and ease of use, especially when taking it on and off.

What’s not to like…?

Any downsides? Well, that mounting apparatus adds weight – you're probably looking at around a 200g weight penalty over a similarly sized bag with a standard mounting system such as the Miss Grape Cluster 13. And there's no getting away from it, this is a spendy bit of kit. Our friends over at have a useful guide to the best bikepacking seatpacks and this one is more expensive than any of them. Although I expect it will be making its way into that list, because this is a really great bag.

Back in 2022 I reviewed the Tailfin Aeropack and since then I've mostly told people who've asked that it's the gold standard for lightweight carrying of things on a range of bikes. And I stand by that view, but the carbon version I tested is now double the price of this seatpack, and even the alloy one (which is the one I'd recommend anyway) is getting on for £300 these days.

Why is the Tailfin so good? Well, compared with a standard seatpack it's incredibly stable in use, it's really easy to fit and remove, it has a big capacity and it's simple to pack.

This Ortlieb bag is giving the Tailfin a run for its money, though, especially if you don't need the extra capacity that the 20L Tailfin offers. It's similarly easy to fit and remove and also gives you completely sway-free storage at the rear. It's a bit lighter, and it's loads cheaper. You can't carry as much, and it's more fiddly to access things, but those are trade-offs you might well be prepared to accept for a ticket price that's over £100 less than the base price of a Tailfin.


This Ortlieb Seat-Pack gets a thumbs-up from me. It's really well made and I'd expect it to last (there's a five-year warranty if it doesn't), and it's about as good as a seatpack can be at carrying stuff without you noticing. Everything about it feels well thought out. It's expensive, sure, but I think you're getting your money's worth here.

> 15 easy ways to carry stuff on your bike

> Buyer’s Guide: Best bikepacking bags


Really well-thought-out and well-made seatpack that's easy to use and simple to fit and remove test report

Make and model: Ortlieb Seat-Pack QR

Size tested: 13L

Tell us what the product is for and who it's aimed at. What do the manufacturers say about it? How does that compare to your own feelings about it?

From Ortlieb:

Thanks to the unique Seat-Lock attachment system, the Seat-Pack QR is quickly and securely mounted and just as speedily removed, completely residue-free. An adapter even enables the use of a dropper post, making the innovative Seat-Pack QR suitable for a variety of bikes.

Whether you're riding singletrack, mountain passes or gravel routes, with the waterproof Seat-Pack QR you are ready for every bike adventure. With the innovative and patented Seat-Lock attachment system and abrasion-resistant nylon fabric, the bag is super stable, quickly mounted and just as quickly removed without leaving any residue. And with the help of a special adapter of just 4.3 centimeter in width, this bag can even be used with a dropper post.

The internal reinforcement and five compression straps ensure that the contents are packed tightly and securely. A valve with a handle strap helps to compress the pack volume, and the elastic cord on the outside allows for the attachment of additional gear. To prevent damage from tire contact, a protective plate is attached to the underside of the Seat-Pack QR, which also doubles as a fender.


+ Our reflector ensures added visibility and safety

+ A daisy chain allows for the attaching of a rear light



1. The saddle rails must have a bend of at least 34°.

2. The seat post clamp must be at least 13 mm from the middle of the bend in the saddle rail. There must also be at least 13 mm from the middle of the bend to where the rail connects to the back of the saddle.

3. The bottom edge of the saddle (at the side) must be at least 14 mm higher than the bottom edge of the saddle rail.


+ Saddles with carbon fiber rails

+ Suspension seatposts

+ Saddles with unusual saddle rails e.g. SQLab Active, Brooks B67 (see point 2 above)

+ Electronic dropper posts e.g. Rock Shox AXS or Magura Vyron

If you still have problems mounting the Seat Pack QR for the first time, try moving the Seat Lock System as far forward on the bag as possible and loosen the bolts to find a fitting position. This is the easiest position for initial mounting – you can then adjust the position for the best fit. The fitting instructions have further information and tips.

Tell us some more about the technical aspects of the product?

Ortlieb lists these details:

COLOR dark sand


BAG TYPE single I

WEIGHT 625 g | 22 oz

HEIGHT 28 cm | 11 inch

WIDTH 48 cm | 18.9 inch

DEPTH 22 cm | 8.7 inch

VOLUME 13 L | 793.3 cu.inch

LOAD 3-5 kg | 6.6-11.0 lbs

Rate the product for quality of construction:

The usual Ortlieb build quality backed up by a five-year warranty.

Rate the product for performance:

The best seatpack I've ever used.

Rate the product for durability:

Reassuringly well made and sturdy.

Rate the product for weight (if applicable)

Heavier than a more standard seatpack but there are benefits to that.

Rate the product for value:

You can't say it's a bargain, but you are getting what you pay for.

Tell us how the product performed overall when used for its designed purpose

It was excellent: a fit-and-forget, sway-free bit of luggage that's well made and simple to remove.

Tell us what you particularly liked about the product

Superbly made, fully waterproof, very stable in use, simple to remove.

Tell us what you particularly disliked about the product

Expensive, not compatible with all saddles or saddle positions, fairly heavy for a seatpack.

How does the price compare to that of similar products in the market, including ones recently tested on

It's expensive. The most expensive seatpack I could find on a quick search.

Did you enjoy using the product? Yes

Would you consider buying the product? Yes

Would you recommend the product to a friend? Yes

Use this box to explain your overall score

Aside from making it cheaper and lighter, there aren't many improvements that could be made here. It's an excellent bit of luggage.

Overall rating: 9/10

About the tester

Age: 50  Height: 189cm  Weight: 98kg

I usually ride: whatever I'm testing...  My best bike is: Kinesis Tripster ATR, Merida Scultura, Dward Design fixed

I've been riding for: Over 20 years  I ride: Every day  I would class myself as: Expert

I regularly do the following types of riding: road racing, commuting, touring, club rides, general fitness riding, fixed/singlespeed, Mountain Bike Bog Snorkelling, track

Dave is a founding father of, having previously worked on Cycling Plus and What Mountain Bike magazines back in the day. He also writes about e-bikes for our sister publication ebiketips. He's won three mountain bike bog snorkelling World Championships, and races at the back of the third cats.

Latest Comments