Our customers say…

Customers consistently praise this base layer for its warmth and comfort, with one noting it kept them cosy even during early morning rides. Others mention its thickness and "woolly" feel, appreciating how well it retains heat. Some found it runs small, advising sizing up. A few enjoy its breathability, even in milder conditions, though it can generate static. Despite minor concerns about fit, like sleeves riding up, customers are generally pleased with its performance and quality.

AI-generated from the text of our verified customer reviews

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Brilliant top

5

14 Dec 2025 by Colin

I ise thos for the bike and dog walking.
Excellent heat quality.

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It is warm but it is also not warm

3

18 Nov 2025 by Chris

Cold seems to run in my family so staring down the barrel of winter I decided to try this base layer. A friend of mine uses one for hill walking in the depths of winter and swears by it - he reckons all he needs to stay warm is this Zerofit base layer and a shell jacket to keep the water out and he's more than warm enough, so that's got to be a good recommendation, right?

The base layer is a snug fit, I guess it needs to be to do its thing and still allow regular clothes to be worn on top. It's not restrictive but I am very conscious that I'm wearing it. I don't think I'd size up but still something of which to be aware.

It's also quite thick as base layers go. The high neck line is a positive attribute, especially when on the bike and I like that the sleeves are a good length and don't have the habit of retreating up my arms leaving bare skin around my wrists.

Its performance is something of a case of all or nothing. If you're moving and doing anything even slightly physical then it feels very warm, sometimes too warm and slightly uncomfortable. Even light housework while wearing will have you feeling quite warm. It'll make you sweat but then holds the moisture against your skin. When it gets warm it can also feel a little bit itchy.

Conversely, if you're not doing anything physical it feels no warmer than any other sweater. Wearing it on the bike isn't the silver bullet against the cold that you might hope unless you're exerting yourself, hanging off the bars with your knee down on every bend in the road.

But that said, I'd rather wear it than not wear it while out on the bike. As part of a system of layers, this base layer is a good start but even at 8.5 C on the bike I find that with this base layer, a mid layer and my GoreTex jacket over the top, it still isn't enough to keep a comfortable temperature. Another layer or two is needed to keep the chill out of my upper body.

TL;DR version: It's good but no better or worse at keeping out the cold than wearing a few more regular layers under your bike jacket.

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Don’t like it’s clingynes

3

15 Nov 2025 by Anonymous

I know product is meant to be snug but I don’t like the feeling against skin

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U

5

15 Nov 2025 by Jonny

These base layers are just head and shoulders above anything I have used in the past. Extremely warm and cosy without being over hot when you stop. XL size is perfect

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As described

5

01 Nov 2025 by Graham

Super warm

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Keeps you warm when it's cold yet remain comfortab

5

26 Oct 2025 by Pat B

I bought this top for a track at the beginning of June at Snetterton, hoping to keep warm while riding my KTM 1290 SDR. Last year, I had felt cold riding around Cadwell Park last summer, due to the amount of airflow through my one-piece leathers. This base layer proved to be excellent, keeping me warm on the early morning ride to the circuit and through the day despite a strong, cold wind. It's also very breathable, so when it got warm in the afternoon, I didn't feel too hot. I was so impressed that I bought the matching bottoms and socks for a recent trip to France that required a very early morning ride down to Dover.

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Keeping warm this winter

5

24 Sep 2025 by Trikie

Super product comfy and warm

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Hot

5

21 Sep 2025 by Carl S

Very comfortable long in the body and very warm.

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Incredibly warm

5

10 Sep 2025 by Tommy C

Feels quite thick in the hand but compresses nicely when worn. As the weather is warm at the moment I’ve only tested it down to 9°, but even then on its own under a Rukka jacket it was probably too warm. I’d be happy wearing this on its own close to freezing temperatures. Only downside is the static electricity when you take it off, but it’s good fun chasing the cat round the house with it lol.

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Slimline and cosy

5

24 Jun 2025 by Scott

Does exactly what it’s designed to, keeps you warm, and warmer still when you move.

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Quality and warm

5

24 Apr 2025 by Mark

Great quality item, a little thicker than i thought it maybe, but it definitely works and keeps you warm n toasty. Might come in useful when not biking as a great base layer on cold chilly days out. It looks and fits pretty good too!

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Absolutely perfect! ??

5

23 Mar 2025 by Adrien

Exactly what I need. Keeps me warm in the cold and cool in the heat. N. B., Order one size up than your normal fit. As they do fit tight

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Best I've Found

5

03 Mar 2025 by Jonathan

Been riding in 0'C to 7'C with just this under my textile jacket and liner - and it's been absolutely brilliant. Love the warmth, love the fit, seems well made and washing at 30'C hasn't resulted in any deterioration.

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Zero fit shirt

5

10 Feb 2025 by Chris G

Excellent product, I ride year round and often do 200 mile journeys and this makes the experience a lot more comfortable. The fit is good very comfortable, the material is surprisingly thick and woolly feeling, all adds to the experience. Bottom line is it works and I'm very pleased.

Overall very good product, would buy again if needed.

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Excellent layer

5

02 Feb 2025 by Anonymous

I wasn't entirely convinced by the hype around these base layers, but thought I'd give it the benefit of the doubt. I'm glad I did. I've worn the top most days (it's been a cold January) since purchase, and bought one for my wife too. They work best when you're moving about, but even sat stationary for most of the day in an outside office it did a great job. In hindsight I probably should have gone up a size, but no real problem. The inside liner is "hairy", but not itchy at all. Thumb holes in the sleeve cuffs would have been a nice touch to stop the sleeves riding up when putting on the bike gear - that's my only minor complaint. Washed once at 30° so far, and looks as good as new, apart from slight bobbling around the neck.

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Zero heat rub base layer

5

23 Jan 2025 by Andy M

Whilst sorting out boots with Heidi, we then got onto a discussion on base layers. I landed on the zero fit . Heidi couldn't have been more helpful with her advice and sizing. Have used in the cold last week and they worked a treat. Only after 8 hours on bike did I start to feel the chill. Pretty good considering the windchill would have put the temperature in minus numbers.

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Very warm

5

21 Jan 2025 by Adrian O