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Fiana12l dry bag seatpack

High capacity 12 litre seat bag with waterproof construction and roll top closure creating a dry bag seat pack for bikepacking

Fiana welded seat pack

Fiana 12l dry bag seatpack

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We do rain rather well here in the UK so it is no surprise we have developed a penchant for products designed for UK specific conditions. Our Fiana seat pack meets this criteria. Durable, sturdy and water resistant, Fiana isn't going to be bothered by miles of muddy bridleway or a day of spring showers. 

The benefits of a rackless luggage system speak for themselves: there is minimal weight penalty, you don't need a bike designed for load carrying and it encourages you to travel light and free.

Fiana has a capacity of 12 litres and will hold a lightweight down sleeping bag (like our PipeDream 400) and Filo down jacket with ease. Stuff in some additional clothing, strap it all down and forget it for the rest of the day.

Fiana uses a waterproof TPU fabric and waterproof welded seam construction method to create a drybag resistant to the wear and tear of life on the road. The TPU coated fabric is robust and waterproof, a thin plastic endoskeleton is built into the underside of the bag extending along the seatpost providing shape and structure to improve stability and make it easier to pack. The contact points between the seatpack and the saddle are reinforced with a Hypalon panel. This protects against abrasion and provides extra grip to help prevent sway.

Attachment is simple and does not require tools. 2 wide nylon webbing straps wrap around the seatpost and a lateral strap threads under the seatstays. The angle of the seatstay straps are optimally designed to pull the bag into the sweet spot in the base of your saddle. This is secured to the base of the bag by Duraflex S.J. buckles with CamLok® to provide enhanced stability and prevent slippage due to vibrations and wet straps, especially when your Fiana is not fully stuffed.

A single roll-top closure provides access to your contents while the bag is attached to your bike. When closed up this is cinched down with directional straps that helps pull in the weight to your centre of gravity. Even though Fiana is a drybag with waterproof construction we always advise using an additional dry bag as an extra line of defence for items that simply must stay dry - or else - such as electronic gadgets or your survival critical sleeping bag.

On the top of the pack there is an external zipped mesh pocket. This is designed to accommodate a GPS tracker (not included) so people can find you if you get lost.

A bungee cord accessory strap holds on to your additional items, items that you hadn't figured on carrying, hadn't left space for or items you want to have quick access to such as flip flops. Finally an additional Hypalon tab on the rear of the bag can be used to attach rear safety light.

Key features
  • 3 Year Alpine Bond
  • Compatible with seat posts up to 27.2 mm diameter
  • Waterproof construction with roll top dry bag closure
  • Accessory pocket for GPS Tracker
  • Bungee loop attachment system
  • Hypalon panel for extra grip on the seat stem
More images
Vital stats

Waterproof construction
Material: 450d TPU nylon
Welded seams


Weight: 460 g
Packed length: 450 mm
Packed width: 200 mm
Packed height: 160 mm
Capacity: 12 litres

Fitting guide

Compatibility: Seat posts up to 27.2 mm diameter
Minimum clearance required from saddle rail to wheel: 18 cm

Origin: China

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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4 Reviews


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Fast Tony
Another great product from Alpkit

I already had the Analoko, but needed a bit more storage for longer days on the bike. This range is really well made from a very hardwearing and waterproof fabric. It is really secure and there is hardly any sway regardless of how the bag is packed. The only small issue I've had is trying to release all of the air when rolling the bag shut. This was easily fixed by taping a small piece of flexible pipe inside the bag to release the air. Unless it gets submerged in water the contents will still remain dry. Maybe a small resealable air release valve could be added to the MK2?

Great pack for traditional touring bike, would be nice to see some road bike compatability added

Great pack, sits snug and the fabric is really smart.

My only greiveance is that the buckles that attach to the seat rails are too big and bulky to go through any of my road saddles (Selle Italia SLR, Astute). So I can't use the pack for commuting by road bike, which is partly why I bought. Perhaps size of buckles could be listed on the spec?

Would be nice to have straps long enough for slightly bigger/ aero shape seat posts too on future versions.

Bought on sale for £56. Amazing value, would highly reccomend this product, just make sure you have plenty of saddle rail clearance.

My Airlok tapered dry bag goes really nicely inside for added waterproofness and organisation too!

The Koala is better...

The perfect bag would be the Koala in this material.. I have other Rando products and the weatherproofness is perfect for British weather... However the strapping design on this bag needs to change for it to be of any value if you want to use more than half of it's 12l capacity.. The more you pack, the more it'll move as you ride.. In addition, the placement of the clips make it very hard to attach and trickers to keep in place.. For the price, I'd recommend you get a Koala and stick a dry bag inside.

Andy nelson
Straps too short

First ride (South Downs way) I came to fit the bag and found the seat post straps too short to connect securely to their Velcro patches. Post was only 27.2, so wide posts would be even more problematic.

Problem meant bag would not stay put.
Really disappointing, the other features seem awesome (materials, robustness etc) just didn't fit.
Have taken it to a cobbler the cut and stitch extensions for the straps, but is going to cost me)