Designed in Japan, made for the outdoor world, Zerofit baselayers offer best-in-class innovations and technologies to keep you active outside throughout the year, whatever the weather. From the award winning Heatrub Ultimate and Heatrub Move baselayers for the colder winter months, through to the Ice Weave and Cold Skin baselayers in the heat of the summer, our products are changing the game for hikers, runners, anglers, bikers, golfers, motorcyclists, sailors, gardeners, scuba divers, birdwatchers, dog walkers and more.

Material: Acrylic 68%, Nylon 21%, Polyester 2%, Wool 7% & Polyurethane 2%

Optimal Temperature Range: -10° Celsius to 10° Celsius

• Independently tested and proven to be five times warmer than a standard baselayer

• Instant heat the moment you put it on, doesn't require compression/tightness to keep you warm

• No need for multiple additional layers due to the warmth generated by the innovative Heat Threads on the inside of the garment

• Incredible freedom of movement due to the stretchable nature of the fabric.

Technologically enhanced 'Heat Threads inside the garment are activated through even the slightest of movements, gently brushing against the skin to generate positive warmth instantly and the construction of the Zerofit Heatrub Ultimate means the heat is retained.

Unlike other baselayers, the Ultimate does not work on the basis of 'compression for heat' - so not only does it provide greater warmth, but you also won’t feel restrained by an inability to move freely, making it one of our most comfortable baselayers.

It also features a slightly looser neckline design, which allows some heat to travel out away from the body - during testing and development of the Ultimate, a tighter neckline was found to cause some overheating.