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Airlok Xtra 20ldry Bag

20 litre extra strong dry bags with added attachment points

Heavy duty dry bags chilli red

Airlok Xtra 20l dry Bag

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Whether you are on expedition, bikepacking across the Alps or on your gap year trekking across South America; Airlok XTra dry bags will be up to the challenge of keeping your kit safe and dry. 

Available in a range of sizes they have been used for first aid kits, wash bags, camera bags, rucksack liners, food bags, minimalist rucksacks.. even nappy bags.

A roll-top closure makes it quick and easy to gain access to your contents. No zip to break, it is a remarkably simple and reliable barrier to water penetration. Fully taped seams make them ideal in scenarios where you are exposed to the worst of the weather.

Attachment points along the sides of the bags and one on the base make them incredibly versatile. They can be attached to a bike or motorbike or simply left in the boot of your car for storing all your emergency essentials. 

We know you need equipment that will last for the duration. If you are out on your baddest adventure ever, a tough, scuff and bash resistant drybag will serve you well. But if you push it too far a repair is still possible. Small punctures or rips can be easily fixed with our Tuff Tape or Tuff Tape patches.

Roll-top dry bags are not recommended for constant submersion.

Key features
Vital stats

Fabric: 320D TPU Taslan Nylon


Weight: 190 g
Flat length: 67 cm
Flat width: 32 cm
Packed size: ⌀ 23 x 56 cm

Origin: China

Commonly used attachments include: Handlebars of a mountain bike (ideal for bikepacking adventures) To the outside of a rucksack for extra storage space (great for extended trips such as gap year travels) To a canoe thwart or kayak (perfect for canoe tripping) To a boulder mat (for when you can’t stuff anymore inside it)

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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2 Reviews


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Built for the outdoors!

Based on my findings with gear in rough environments, the Xtra grade are superb. I use them for hiking / backpacking purposes rather than biking. One year I was using the 20ltr to house a Thermarest Z-lite which was being strapped to the outside of my pack, flat (for the record, that was the Z-lite folded in such a way that there are 8 folds on one side, 6 on the other, making it much less protruding). The Airlok Xtra in this application was less for waterproofing but more about protection for the mat while tearing through some savage thorny and scraping terrain in southern Europe. Granted, the top roll could only be done about twice on the 20 ltr but it was a surprisingly tidy fit for the mat in width and depth. It also meant I had a sit mat to unclip from the outside of my pack during rest stops and use. It was then used at beaches as a float for longer distance swimming. Following all that rough terrain (and my weight on the Xtra bag in that terrain as a sit mat with the mat inside), the 20 ltr Airlok Xtra is still fully intact today.

Great bag

Been using this everyday as a commute bag for 6 months (either on tube or on the top of a rear pannier). Also used it on two tow/bridle-path multi-day missions with a https://www.alpkit.com/products/love-mud-confucius.

This is a excellent bag, attachment straps make it very flexible, its strong, waterproof.

This is my everyday + mission bag.

- the red carry strap has a plastic buckle attaching it to the bag. This is not very strong and will give way with the weight of 3+ wine bottles. This can be easily modified (although I'm not sure if the bag is designed for such weight, and don't use it every day with such a load)

- the compression straps are not easily adjustable. I.e. if you pull out water-proofs you need to tighten the bag so it sits tight on whatever frame it is attached to. If quick adjustable straps were available from alpkit I would buy them.

Still, this is an awesome bag I continue to use everyday.