And with that, we were officially done with BST for 2026 and that also means the Zerofit winter baselayer season has arrived!
Our Heatrub Ultimate Baselayer (£59.95) is five times warmer than a standard product you may have worn previously, and we also have matching Leggings (£59.95), Socks (£25) and Waterproof Gloves (£69.95) – all made from the same snuggly material to keep you nicely heated in temperatures as low as minus 10° Celsius.
And for milder autumnal and winter days, the Heatrub Move (£45) delivers twice as much warmth as a standard baselayer but also wicks sweat away. Here's why they are our best-selling winter products!

Ultimate Baselayer, Ultimate Warmth – Backed By Science
The Heatrub Ultimate really is five times warmer than a standard baselayer!
Evaluated for Heat Retention Levels at the Boken Institute, Japan’s leading analysis centre for fabrics and textiles, the Ultimate was found to have a Rating of 0.78, compared to a normal baselayer which would score between 0.1-0.14.

While a normal baselayer uses compression to seal in body heat, Zerofit designers took a different approach when creating the Ultimate and developed super soft fibres called ‘Heat Threads’ that actively generate warmth as soon as you pull it on.
The Ultimate Baselayer is a firm favourite with motorcyclists, skiers, golfers, anglers, gardeners, hikers and sailors and because it’s so comfortable and gentle on the skin, it can be worn all day without irritation. The matching Leggings, Socks and Waterproof Gloves are just as lovely, too!

Heatrub Move Baselayer For Temperature Regulation Perfection
While the Ultimate is the top of the pops for the coldest winter days, the Heatrub Move has been engineered to react to changing temperatures and conditions.
Developed with Adaptable Warmth Technology (AWT), the baselayer was also independently tested for warmth at Boken and is officially twice as warm as a regular product.

But the AWT also wicks perspiration away thanks to the double-layer construction of the baselayer, so there’s no horrible cold sweat sensation.
Built for the same activities as the Ultimate but in a temperature range of minus 5° to 12° Celsius, it’s also much loved by runners, cyclists, footballers, rugby players and netballers who want to keep active through the winter months, and it can be used for everyday activities too. We have matching Heatrub Move Leggings (£45), for all over body temperature regulation perfection, too.








