Zerofit Heatrub Ultimate Baselayer – The best runners companion

Zerofit is delighted to share that the award-winning Heatrub Ultimate Baselayer is now available in an even wider range of sizes. This means anglers, motorcyclists, mountaineers, sailors, gardeners, golfers, runners, and dog walkers can all find the perfect fit to stay warm and comfortable throughout the winter months.

Designed for performance in cold conditions, it offers more choice without compromising on the warmth and comfort Zerofit is known for.

Designed in Japan, the Zerofit Heatrub Ultimate Baselayer has been independently tested at the Boken Institute in Osaka and proven to be five times warmer than leading baselayers. It achieved an impressive heat retention rating of 0.78, compared to just 0.1–0.14 for standard baselayers and around 0.3 for a typical sweater—making it a true game-changer in temperatures as low as -10°C.

At the core of its performance are advanced Heat Threads, which activate through movement and gently interact with the skin to generate warmth instantly.

Unlike traditional baselayers that rely on tight compression to trap heat, the Ultimate takes a different approach. It delivers superior warmth without restriction, allowing for complete freedom of movement. Combined with its super-stretch fabric, it naturally adapts to your body shape, ensuring a comfortable fit you can wear all day.

The Heatrub Ultimate Baselayer is perfect for runners who train in cold weather. It generates warmth instantly, keeping you comfortable from the moment you start.

Unlike tight compression layers, it offers freedom of movement, so you can run naturally without restriction. Its extra warmth also means fewer layers, making your runs lighter and more comfortable.Stay warm, move freely, and focus on your run—no matter the temperature. available to purchase from the www.zerofitusa.com website.