HEATTECH thin yet warm thermal clothing technology.

HEATTECH

Thin yet warm thermal clothing.

HEATTECH

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HEATTECH Ultra Warm

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

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*.

Accessories

*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.