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Koalabikepacking seat bag

Lightweight saddle pack storage with 3 point attachment system for a secure and stable ride

Koala seat pack for bikepacking

Koala bikepacking seat bag

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1. Colour

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2. Size


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Made in our own UK Workshop Koala is one of the lightest high capacity seat packs you can find. We have designed the geometry of the straps and added an additional locking strap that runs around your seat rails. This provides enhanced stability and prevents slippage due to vibrations, especially when your Koala is not fully stuffed.

Key features
  • 25 Year Alpine Bond
  • Made from durable and highly water resistant VX21
  • Roll top closure
  • Adjustable webbing ladder to fit most saddle angles
  • Duraflex buckles
  • Made in our own UK workshop by bikers, climbers and paddlers
  • Seat rail locking strap to prevent slippage
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Vital stats

Length: 41 cm
Width: 21 cm
Height: 17 cm
Weight: 275 g
Max capacity: 13 litres
Minimum clearance needed between saddle rail to the wheel: 18 cm


Length: 37 cm
Width: 17 cm
Height: 13 cm
Weight: 240 g
Max capacity: 7 litres
Minimum clearance needed between saddle rail to the wheel: 15 cm

Origin: United Kingdom

Free UK Shipping on all orders

Free 2 day delivery to UK addresses is included in all orders so the price you see is the price you pay. Upgrade to next day at the checkout.

Free No hassle 123 Day Returns

Buy with confidence and if you are not happy, change your mind or want a swap for any reason then return it for free and we will exchange or refund no question. The price you see is the price you pay. Just return the kit as you receive it - in its original condition, unused, unworn, with original packaging and fit for resale.


We offer a range of finance options from 0% to 9.9% starting on orders over £500. Please give us a call on 01773 417007 to apply for finance. Our customer support heros will take your order and talk you through the quick and easy application process.

Alpine Bond

If one of our products does not meet your expectations upon delivery or, if it does not live up to the demands placed upon it, please return it within 3 years of purchase for repair, replacement or refund. If the problem is our fault then we will do this to your satisfaction if it’s your fault then we will help out the best we can.
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7 Reviews


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LETJOG and other 3 day rides... This thing is blooming great!

Duncan Roberts
Great Product great Service

Ideal for Light Touring - Five Star Service from Alpkit

Practical spacious saddle bag

purchased a Koala Saddle 13l bag for a 700km trip (yet to do) This bag is deceptively big and will just about fit the bare essential clothes in for the journey, (3 sets of bib shorts, cycle tops and dry clothes for the evening it's tight but they fit. I've tested it out on several commutes to the office and it not only prevents mud from the bridal way spraying up my back, it ensures my work clothes arrive dry and dirt free, which is fantastic as I hate cycling with a rucksack.

I'm planning on getting the Tivaro 13l handlebar bag before I set off on the ride at the end of August and then hopefully next spring the Camino Al.

Customer service was great, helpful and clear, definitely recommend.

Just buy one!

If you are looking at bike bag options this is the daddy. The strapping design is second to none meaning the bag will remain locked to you bike no matter what abuse you give it. You'll need a dry bag inside as the material isn't waterproof but let's face it, we all do that anyway with any bag we use on our backs.

The only upgrade Alpkit could do to this now is take the excellent material from the Rando and craft a Koala from it. If they pull that off then they'll need to add another star to their rating system.

Ps. If you're considering this and the Rando Fiana; I say this wins hands down. Having watched a friend ride all day with his Fiana fully loaded i think the strapping system on that particular bag is a much lesser design

Tough bag for adventures

I've been using this bag since 3 years, with a road bike, during summer tour in the Alps between Italy, Austria and Switzerland. I rally like this bag because it satisfies two features that I consider essential when traveling; the bag seams really indestructible and built to last for long time. I also appreciate the extra strap (that others brand don't have) that almost avoid the swing movement of the bag when pushing on the pedals.

Seems well made. Doesn't fit my suspension seatpost.

Ordered this bag for a long XC trip. Unfortunately didn't fit my bike because I am using a parallelogram type suspension seatpost. The straps are not long enough to go around the parallelogram (not big deal) and the 50mm of travel in the suspension compromises my saddle-tire clearance (deal breaker). Can't blame Alpkit for that. I wish there were more designs for short riders without much saddle-tire clearance. Four stars for 1) service, 2) return process and 3) design and quality of the bag. I had to decide between having rear suspension or using the Koala, and with 120 miles per day of bumpy trails for three days the decision was clear.

Koala review

Have had this bag for over a year now with moderate usage.Fits a lot of stuff in but straps are quite fiddly and top buckle often caught under saddle.Light for its size.Would give it better rating but shows more wear than expected from structure material coming through outer given it hasn't been given a hard time.


Koala seat pack questions answered

Stuart Wright of Bear Bones Bikepacking gets his hands on a Koala seat pack and takes it for a 100 mile round trip.

A few weeks ago I got my hands on a 'Rough cut' pre-production Koala and last week took it on a 100 mile ride to the BNO in the Peak District and back again.

Stuart Wright

Bear Bones Bikepacking October 2013 - Stuart Wright

CTC - Seatpack Test - Koala

Dave tests seat packs for touring cyclists and finds the Koala the lightest, most versatile for capacity and stable seatpack.

Well designed and lightweight bag that's ideally suited to off-road touring.

Dave Barter

Cycle - CTC magazine June 2015 - Dave Barter

Best In Test
Bikes etc - bikepacking

Bikes Etc: Bikepacking Gear

Packed with useful features, extremely sturdy and with options to suit every need, these are superb bags.

Bikes Etc

Bikes Etc October 2017 - Bikes Etc