
Zerofit Heatrub Ultimate Base Layer Leggings - Black
Unisex leggings with friction based heat thread technology that creates warmth in low temperatures
DetailsVerified Customer Reviews for Zerofit Heatrub Ultimate Base Layer Leggings
Warm base layer
02 Dec 2025 by Anton
Perhaps the warmest base layer available.
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Probably the best
15 Nov 2025 by Berkeley
Despite some reviews saying they’re scratchy or irritating on the inside, I found them very comfortable. Not so sure about the “heat rub” effect being relevant on a motorcycle, but they are the warmest leggings In the wardrobe. Not five stars due to the cost.
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Game changer
15 Nov 2025 by Jonny
Extremely comfortable and cosy and perfect for these cold mornings. Not too hot when you stop so not uncomfortable heat. Size was perfect in Large for 36” waist. Definitely recommend these and the top as perfect bases layers.
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Excellent product
01 Nov 2025 by Graham
Super warm
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Warm when it's cold yet still comfortable when it
26 Oct 2025 by Pat B
I bought these for a trip to France at the end of September, knowing that I would have to leave in the early hours of the morning for a 2.5-hour ride down to Dover. Despite the overnight temperatures being chilly, 8-10 degrees C IIRC, my legs remained comfortable only wearing single-layer jeans over the top. Once in France, the temperatures rose to the mid-teens, but I didn't feel too hot. They do an amazing job of keeping you warm whilst breathing well, so you don't overheat when it gets moderately warm. They are also very comfortable.
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Good quality
01 Oct 2025 by Peter
After purchasing these previously, my partner wanted more of them before winter. Nice and thin, as used by Glen Irwin, keeps you warm but giant bulk you out.
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Keeping warm
24 Sep 2025 by Trikie
Great product comfortable and warm
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It works!
24 Apr 2025 by Mark
Wasn't sure about all the hype regarding Zerofit, but i can confirm it does truly work, you definitely can feel the warmth coming through, especially when you start moving about on and off the bike. I would recommend for sure. Great quality and a good fit to without been overtight. I will be using these under my jeans on cold winters day when not biking also!
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Absolutely perfect! ??
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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Very warm base layer
16 Mar 2025 by S
So warm and comfortable. I am not freezing anymore. I got the socks and top as well. To work best to wear on bare skin as it warms more the more you move.
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Zero fit base layer
10 Feb 2025 by Chris G
Excellent product, I ride year round and often do 200 mile journeys and these make the experience a lot more comfortable. The fit is good but my one minor gripe is that the waist height should higher to allow a more comfortable overlap. Overall very good product, would buy again if needed.
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Zero fit base layers
23 Jan 2025 by Andy M
Great service and advice from Heidi in the Reading store. Layers are great. Used them for 8 hours in minus temperatures. Did start to feel the chill but pretty good I reckon. Go for next size up would be my only recommendation.
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size up
04 Jan 2025 by David E
Haven't tried these yet on the bike but had to size up for the right fit (so the crotch is where it should be). Not sure how warm these will be as I certainly wasn't breaking a sweat indoors. Time will tell once I get to use properly (will be using with textile trousers that don't have a thermal liner).
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They work..
20 May 2024 by Matt N
I was a little sceptical of the claim that these "generate" heat, but it seems they do, a little tiny bit scratchy but generally comfortable and undoubtedly the warmest base layer I've tried. Ironically they work at their best when your off the bike as your flexing the material by walking, it's very subtle but I'm sure if you wriggle about a bit they warm up.
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Warmest baselayer
20 Apr 2024 by Mark T
Bought these to go with Zerofit Ultimate black top. Warmest base layers I have tried. Wore out on chilly day & kept me cosy. Have to see how performs when weather gets colder next winter. Sizing correct, 35 waist & went for large. Excellent service as usual from Sportsbikeshop
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Instant warmth
19 Apr 2024 by Josh
These are great. Definitely feel the warmth as soon as they go on. They're ideal on cooler days to keep me warm under textile trousers without their lining in.
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Press Reviews
Description
The Heatrub technology, engineered in Zerofit's Japanese homeland, uses 'double-loop' barrel fabric which provides both heat insulation and 'friction heating'. The extra-long heat threads ensure a layer of warm air is retained around your legs and even just a little movement of these bristles causes friction which creates cosy warmth.
Product Specification
Manufacturer
Zerofit Heatrub Ultimate Base Layer Leggings - Black
- 68% Acrylic, 21% Nylon, 2% Polyester, 7% Wool and 2% Polyurethane construction
- Does not restrict movement
- Friction based heat thread technology that generates warmth
- Retains warmth
- Optimal in temperatures as low as -10°C
- Double loop barrel fabric
- Unisex fit
| XS | S | M | L | XL | 2XL | 3XL | |
|---|---|---|---|---|---|---|---|
| WAIST(In) | 22-26 | 26-30 | 30-34 | 34-38 | 38-42 | 42-46 | 46-50 |
The Heatrub technology, engineered in Zerofit's Japanese homeland, uses 'double-loop' barrel fabric which provides both heat insulation and 'friction heating'. The extra-long heat threads ensure a layer of warm air is retained around your legs and even just a little movement of these bristles causes friction which creates cosy warmth.
Questions and Answers
Are they true to size or do I need to size up or down?
January 27, 2025We would advise to size up.
Do they have open or closed fly
December 2, 2024This has an open fly.
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