What is HEATTECH?
Innovative Thermal Clothing Technology.
HEATTECH’s micron-sized fibers capture the energy of water molecules emitted from the body and convert them into warmth while retaining heat.
Energy from molecules is converted into warmth.
Fibers absorb water molecules emitted from the body.
HEATTECH Innerwear
More than just warmth. Technology at its best.
Warm
Fit
Deodorant
Sweat Solution
Men's HEATTECH Innerwear & Thermal Underwear
Cold-weather comfort starts here. Explore Men's HEATTECH innerwear, tops, leggings, and essentials engineered to help you stay warm throughout the season.
Shop Women's HEATTECH Innerwear
Shop Kids' HEATTECH Innerwear
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HEATTECH
Recommended temperature 5°C to 20°C
HEATTECH Lineup
Lightweight yet warm and easy to use. Perfect for everyday wear.
Extra Warm
Recommended temperature -5°C to 15°C
Extra Warm Lineup
Cashmere Blend
Thin, warm, and soft. Smooth texture made with 9% cashmere. Absorbs and wicks away moisture to help keep you comfortable.
*Lining made with 100％ cotton.
Ultra Warm
Recommended temperature -20°C to 10°C
Ultra Warm Lineup
The warmest HEATTECH*.
*Approximately 2.25 times warmer than regular HEATTECH.
Cashmere Blend
Recommended temperature -5°C to 15°C
Cashmere Blend Lineup
Cashmere Blend
Thin, warm, and soft. Smooth texture made with 9% cashmere. Absorbs and wicks away moisture to help keep you comfortable.
