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Gourdon 25 waterproof back pack

Waterproof 25 litre roll-top drybag, simple, not fuss clean lines, ideal for anything from adventure races to the daily commute.

Gourdon 25 drybag day sack black
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The difficult middle child? Gourdon 25 is a delight actually! We chose to go super clean with the larger Gourdons, to enable you to get out there looking like a pro.

Gone are the days of pots and pans hanging off the back of your sack, or one of those rucksack covers that never really worked. You don’t need the waterproof cover any more, the roll top closure and drybag design means it can last any shower and even the occasional dunking. One large 25 litre compartment is all you need for all those bits and pieces for a wild camp away from the masses.

Taped seams, durable nylon fabric and the simple design means a rucksack weighing under 600 grams. This includes integrated padded rucksack straps, a hydration pocket, chest strap and waist belt. Your companion for adventures in the UK; you never know when it is going to get a bit damp - but it will eventually...

Key features
  • 3 Year Alpine Bond
  • Pouch for 1 l - 1.5 l hydration unit (450 mm long by 200 mm wide bladder)
  • Roll-top closure
  • Removable padded back
  • Taped waterproof seams
More images
  • G25 1 -
  • Gourdon back 1200 - Drybag with straps!
  • Gourdon cheststrap 1200 - Adjustable chest strap
  • Gourdon closure 1200 - Simple roll top closure
  • Gourdon opening 1200 - Wide opening
  • Gourdon padding 1200 - Removable padded back
Vital stats

Fabric: Taslan TPU nylon
Taped waterproof seams
Duraflex buckles


Total weight: 575 g
Stripped back weight: 405 g
Height (laid flat): 55 cm
Diameter: 25 cm

Origin: China


Open top rally to Santiago

John Sleightholme likes classic cars but it seems he doesn't like a hard top to get between him and the elements. With limit storage space he chose a couple of Gourdon dry bags to keep his suave evening wear dry.


Annapurna Circuit Kit List

Alpkit Col works through his choice of sleeping bag for the Annapurna Circuit



Turning a summer of adventure into something a bit more, errm, oddventurous


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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.


12 Reviews


Used this product?

Write a review
Top notch

Best pack i have ever bought. It hasn't leaked once, really light and at a good price.
The only things I would add are some elastic to tidy the waist straps (soon sorted with some slim black hairbands)
Place to put keys (Using Velcro I secured a clear pencil case inside)
Quality stuff Alpkit.
A tip for those of you that cycle with it. (I do everyday)
Sandwich your D lock between two pieces of cardboard inside the hydration storage pouch. Keeps it from digging into your back and rattling around.

Day in day out ....

I have used a Gourdon 25 as a my bag for cycle-commuting for the last few years. In all weathers, day in / day out. It is without doubt the best rucksack I have ever had for the job. Waterproof, perfect size for my lunch, a book and a change of gear. I love it and would gladly recommend it to any of my cycling buddies.

Perfect piece of kit

Just perfect. Simple. Practical and well made. Great service and good price too.

Chopstick lover
Spot on

I've used this for the last few years as a do anything kit bag, and most recently as a bag to commute swimming/running stuff to work in. It's robust, simple and highly admired by many people.

Literally the best bag ever

I've had mine for 2 years and I adore it. It is the perfect size for my daily commute and keeps my clothes happy and dry.

Jasper Law
Bloody sweat and tear stained but still going strong

I have had this bag for about 4 years and use it every single day for everything from my commuter bag, to the weekly super overloaded shopping run to caving mountain biking

A week in with my Gourdon 25

This is my first purchase from Alpkit, previously an unknown world discovered through reading 'Microadventures'. All I can say is 'where has this bag been all my life'? It's excellent. It's spacious. It's light. It's stylish. I've loaded it up with shopping. I've carried tins of paint in it this week. I've cycled in pouring rain with my work laptop inside, confident it'll still work when I get home.

As a cycle commuter this is EXACTLY what I've been looking for. It swallows all my stuff. This week I've lugged my laptop and associated cabling, a change of work clothes, my lunch, a hefty D-lock and bike repair stuff. Felt totally secure even when out of the saddle riding uphill.

It seems bombproof and has the features you'd want and none of the extraneous stuff. The minimal design aesthetic just looks cool and the kind of thing that ought to cost a shed load more. Having just read 'Microadventures' I'm now planning my own escapades using the Gourdon.

EVEN better, buying from Alpkit gives confidence it wasn't put together in a sweatshop. I'll be back for more stuff if its all this good!

A modern classic

The perfect daysack, I've had mine for five years, it's still as good as new and it's had a lot of use. Can't fault it a modern classic.

Buy One!

I bought my Gourdon 25 3 years ago for cycling to work every day. I've used it in some truly foul weather and it has stayed 100% waterproof. I'm thinking about another but, truthfully, I don't need it. The old one is fine, just a bit grubby... from all the foul weather commuting!

Buy it!

I've had two of these bags. The only reason I replaced my original was due to being careless with a knife (totally not an Alpkit problem). Have used in all weathers cycle commuting, walking and as a general day to day back pack and literally cannot fault it. I've never had a bag last so long in everyday use.

Love how simple it is no stupid excess pockets like most backpacks. I know where my stuff is when it's in my bag(although bladder pouch is great addition).

Would instantly replace this with another Gourdon if it ever breaks or gets lost. I would honestly feel like I was missing out if I bought something else. And it's so cheap! Just buy it you won't regret it.

Would give 6 stars if this was an option!


I have been looking for a pack to run commute in London. Having tried a couple (and returned) I stumbled across Alpkit, and ordered this.
It is absolutely perfect. I carry quite heavy stuff (Laptop, Clothes, Toiletries etc) and the bag stays in place. I would highly recommend.

Jon M
Gourdon, works really well

OK, I'll add a review. Because I really like Alpkit, they have some great stuff. I have an earlier version of the backpack, which has a transparent window, so you can see what you're packing.

I bought it years ago, so I'm reviewing an older model, but at the same time, I'm also offering feedback on 5 years of usage.

Fabric seems quite light weight, yet it's tough as anything. I do look after all my stuff, I'm very carefu.

I've used it very effectively on major ocean yacht crossings. We also used it for packing emergency equipment. I use it daily for cycle trips, look after it, and it's tough as anything.

Whilst it may seem I'm criticising the lightness of the materials, a huge advantage is that it doesn't weigh much, you can easily put this backpack on a diet.

it's a great backpack if you're out swimming. I've swum out to lots of boats, using the bag to hold my clothes, phone, fishing kit, etc., The bag is just totally waterproof, and let's you do all sorts of things you probably wouldn't have thought you could do.

In short, a brilliant bit of equipment.


Trek and Mountain review the Gourdon 25

Trek and Mountain review the Gourdon 25 and award it 8/10.

A bit different, but good value and surprisingly useful

Trek and Mountain

Trek and Mountain June 2011 -

Countryfile features Gourdon 25 as one of the best waterproof products

Counrtyfile pick three of the best waterproof products to feature in the May 2011 issue. Gourdon is one of the top picks.

Genuinely waterproof day-packs are few and far between, which makes Alpkit's excellent Gourdon packs a rare beast

Jon Doran

Countryfile May 2013 - Jon Doran