The Zerofit Heatrub Ultimate Baselayer in Black is a revolutionary product designed to redefine warmth and comfort in cold weather. As an award-winning baselayer, it has been independently verified to be five times warmer than leading competitors and twice as warm as a traditional sweater. This exceptional performance is achieved through advanced Heat Thread technology, which activates with even the slightest movement. These innovative threads gently brush against your skin, creating immediate warmth and retaining it effectively to keep you comfortable in freezing temperatures.

Unlike conventional baselayers that rely on compression to generate heat, the Zerofit Heatrub Ultimate takes a different approach. Its design eliminates the restrictive feel of compression, allowing you to move freely while staying warm. This ensures superior comfort for a wide range of outdoor activities, from fishing and hiking to skiing and motorcycling. The slightly looser neckline has been specifically engineered to prevent overheating by letting excess heat escape, a thoughtful feature that sets this baselayer apart from its competitors.

Proven through rigorous testing at Japan's renowned Boken Institute, the Zerofit Heatrub Ultimate achieved an impressive Heat Retention Rating of 0.78. To put this into perspective, standard baselayers typically range from 0.1 to 0.14, and even a sweater averages around 0.3. This unparalleled level of heat retention makes it an ideal choice for outdoor enthusiasts and professionals who face extreme conditions, performing reliably in temperatures as low as minus 10°C.

The Zerofit Heatrub Ultimate also reduces the need for bulky additional layers, offering a streamlined solution that keeps you warm without compromising mobility or style. Its efficient heat retention makes it a cost-effective choice, eliminating the hassle and expense of multiple layers while providing exceptional insulation. Whether you're tackling outdoor adventures, working in the cold, or simply enjoying winter sports, this baselayer ensures you stay warm, comfortable, and ready to take on any challenge. With the Zerofit Heatrub Ultimate, you can experience unmatched warmth and freedom of movement, making it the ultimate companion for cold-weather pursuits.

FEATURES

• 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
• Garment Construction: Acrylic 68% / Nylon 21% / Polyester 2% / Wool 7% / Polyurethane 2%
• Weight by Size: XS 89g / S 195g / M 203g / L 210g / XL 234g / 2XL 310g / 3XL 332g
• Optimal Temperature Range: -10°C to 10°C
• Sports & Activities: Motorcycling, scuba, golf, hiking, equine sports, sailing, fishing, skiing, gardening and workwear

SIZE GUIDE

Zerofit Sizing Advice: we would suggest ordering a size up from your normal t-shirt or polo shirt size

*Please note this assumes standard bust and abdomen size