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BTwin 520 Warm Cycling Jacket



Great cold weather jacket with plenty to offer, but it will need a hardshell over it for really wet days

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.

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The BTwin 520 Warm jacket is toasty – sometimes a bit too toasty for a mild winter. Suited to low or sub-zero digits, the 520 also repels light showers with ease, but will struggle with heavy downpours.

The 520 felt quite heavy when it arrived, especially when weighed against a similar softshell jacket. It comes in at 562g, which is noticeable, though you do get decent protection from the elements.

> Find your nearest Decathlon store here

> Buy this online here

The fit of the jacket is trim, with the exception of where the top of the sleeve meets the top seam of the shoulder, which reminded me slightly of Ming the Merciless. I don't have particularly narrow shoulders but the seams didn't lie flat, which made me slightly conscious of the cut.

BTwin 520 Warm Cycling Jacket - Zip

Things are much better across the chest and back, with a high-cut front and low-cut rear, perfect for keeping fabric out of your way at the front when pedalling while providing good coverage to your kidney area.

BTwin 520 Warm Cycling Jacket - Bike

The zip has a decent glove-grabable toggle and a large flap to prevent draughts getting in, which doesn't snag the YKK zipper. The very stretchy waist band has a solid line of silicone gripper, and this does a very good job of keeping the jacket in place.

The cuffs are elasticated and quite complicated affairs, with a lot of material present around the wrist. A slimming down of the design here would be appreciated, especially when you're wearing high-cuff winter gloves.

BTwin 520 Warm Cycling Jacket - Pocket

You can carry a decent amount of stuff in the 520, given its five pockets. The rear zipped one is claimed to be water repellent, and has a hole for headphones, but I struggled to get a smartphone in a waterproof case in there and zipped up.

The three traditional pockets across the rear are average sized, with the two outer openings quite trim – it took a bit of fiddling to extract nutrition while riding. There's also a pump pocket stitched into the inner seam of the left pocket; I use a frame-mounted pump in winter, but tried this out and it works pretty well, a nice touch.

BTwin 520 Warm Cycling Jacket - Back

On the front the zipped chest pocket has enough space for keys and some coins, but little else. It's not something I found myself using a lot. Toggles on all the zips are a good touch.

Inside the jacket you get a neck buff that's buttoned into the jacket. I tried putting it on while wearing the jacket but it's not so simple, plus it leaves you with a bit of a faff once you want to remove it when you get to your destination. I ended up taking it out and using it like a normal buff; used in this manner it's a decent addition to the jacket, especially given the price.

BTwin 520 Warm Cycling Jacket - Neckwarmer

Looking inside the jacket, there's an array of different materials, focusing on windproof materials at the front and back, with more breathable material at the sides and down the spine.

Two zipped openings with mesh linings allow you to tune airflow on the side of the ribs. These catch more air than you expect and are fairly useful as they can be easily opened and closed during a ride. The breathability is decent enough, but it does seem to lose heat fairly quickly at anything under 2°C. It's more suited to 2-8°C, anything lower needs a bit of thought about layering beneath, though this can be pace-dependent.

> Check out our guide to the best winter cycling jackets here

Graphically, the jacket is simple enough. There are four choices of colour, with two featuring additional reflective panels and fluorescent colours (prices vary depending on the colour). I was concerned about the large presence of white on our test jacket, but it doesn't seem to have stained, and mucky ride residue has washed away easily enough. There's no peg loop in the collar (a bugbear of mine), which would have been a simple addition given the amount of features that BTwin has packed into the jacket.

Finally, given all those features and the jacket's performance, it's great value at £64.99 (£74.99 for the orange and yellow options), and the red and blue are currently discounted to £44.99. You'll need to be lucky with sizes, though – only S and XL are available online in some colours, though you might find others in a Decathlon store.


Great cold weather jacket with plenty to offer, but it will need a hardshell over it for really wet days test report

Make and model: BTwin 520 Warm Cycling Jacket

Size tested: Medium

Tell us what the jacket 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?

Decathlon says:

"For whom? Men

Use? 3-hour rides

Sizes? Available in sizes S to XXL

The third layer is the layer that protects you from the elements, for instance, the cold and the wind, while the lower layers offer warmth and breathability. By wearing a suitable cycling jacket, you will maintain your performance and stay comfortable, whatever the weather.

This 520 cycling jacket keeps you nice and warm with its high collar. These mechanical vents offer great moisture management."

I say it's a useful garment for anyone riding in winter temperatures at any level. Decathlon's description is at the level I would place it in terms of performance.

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

Main fabric: 57% Polyester; 31% Polyamide; 12% Elastane

Yoke fabric: 88% Polyester; 12% Elastane

Rate the jacket for quality of construction:

Flatlock seams have stood the test. Nothing to worry about in terms of construction.

Rate the jacket for performance:
Rate the jacket for durability:

Looks pretty much as it did the day it arrived.

Rate the jacket for waterproofing, based on the manufacturer's rating:

Shrugs off light showers easily enough, but it's not intended as a waterproof.

Rate the jacket for breathability, based on the manufacturer's rating:

Doesn't hold moisture to uncomfortable levels but it's more of a winter garment than one suited to warmer spring days.

Rate the jacket for fit:

Tops of the sleeves bunch up a bit, shoulders are uncultured.

Rate the jacket for sizing:
Rate the jacket for weight:

Feels fairly heavy when wearing, even more so when wet.

Rate the jacket for comfort:
Rate the jacket for value:

Cracking jacket for the money.

How easy is the jacket to care for? How did it respond to being washed?

A bung in the wash with other cycling gear always had it coming out looking clean, even the white panels. The printed logo has lasted very well. Does need regular washing to avoid becoming smelly.

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

Used well on a variety of rides from commutes to club rides, and it did everything without giving me major cause for complaint.

Tell us what you particularly liked about the jacket

A decent workhorse. Lots of thought has gone into the features it offers.

Tell us what you particularly disliked about the jacket

The slightly unrefined feel of the shoulder cut and weight of the fabric.

Did you enjoy using the jacket? Yes

Would you consider buying the jacket? No

Would you recommend the jacket to a friend? Yes, on a budget.

Use this box to explain your score

This isn't a premium jacket, but it does the job of keeping you warm in winter months well. Decent for the price.

Overall rating: 7/10

About the tester

Age: 34  Height: 183cm  Weight: 80kg

I usually ride: Kinesis Racelight T (winter) Cervélo S2 (Summer)  My best bike is:

I've been riding for: 5-10 years  I ride: Most days  I would class myself as: Experienced

I regularly do the following types of riding: commuting, club rides, general fitness riding, mountain biking

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alexb | 8 years ago

I have the medium sized fluorescent orange version of this jacket and don't get any problems with the shoulders bunching up, so I wonder if it's a sizing issue.

I tried on large and medium in store at the Canada Water store, they both fit me well - if I had wanted a looser fit, the large would have been fine - you could wear a fairly loose fitting layer underneath, but the medium is close fitting, no flapping and very racy. The cut is quite asymetric - short at the front, longer at the back, so the coverage is great and it doesn't bunch up at the front when you are bent forwards.

Sleeve length is excellent and the cuffs seal really well to the wrist and go under my gloves perfectly. I also tried putting the gloves on first and then the jacket, but that doesn't really work - the cuffs are designed to prevent any air-gaps between your gloves and your wrist and the desing really does work.

The fluorescent models are more expensive, but you are also paying for a huge amount of additional reflective coverage on the arms, back and shoulders. My wife definitely approves.

There are a lot of different fabrics in this jacket and it seems to work well, so I'm pretty happy with mine for the time being. It replaces a DHB Windslam, which I liked, but which was a bit "leaky" for me - I had a lot of cold draughts seeping in around the sides of the chest - so much so, that I always wear it with a gilet in winter - the Decathlon jacket is much better sealed in that regard.

Overall I think this is a jacket where there's been a lot of thought put into the design. My only criticism is that the pockets are a bit tight, but I don't tend to carry much that I need access to on the go anyway.






Mr. Wolfe -The CAAD | 8 years ago

Great review... "Ming the Merciless" Lol !!

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