Discover HEATTECH
Fibers absorb water molecules emitted from the body.
Energy from molecules is converted into warmth.
Men's HEATTECH
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HEATTECH Ultra Warm
HEATTECH Ultra Warm is our warmest option, approximately 2.25× warmer than original HEATTECH. Designed for more extreme cold with a recommended range of –4 °F to 50 °F*.
HEATTECH Extra Warm Cashmere Blend
HEATTECH Extra Warm Cashmere Blend combines the soft, premium feel of cashmere with heat-retaining warmth. Recommended for 23 °F to 59 °F*.
Cashmere Blend
HEATTECH
HEATTECH is lightweight yet warm, ideal for everyday layering. Recommended for 40° － 68°F* for mild winter days or cozy indoor wear.
Tops
Socks
*Rough guideline when worn with other clothing. May vary by individual.
**Calculated based on the CLO value that measures heat resistance allowing a person to maintain thermal equilibrium.