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Take action against the elements: adjust your temperature with three levels of HeatTech insulation.
HeatTech
Don’t take any chances with the cold. Breathable HeatTech inner-wear delivers reliable warmth all winter long.
Extra Warm
Stop winter in its tracks with an Extra Warm base layer that is 1.5 times as thick as regular HeatTech.
Ultra Warm
When the temperature sinks lower than your deep squat, choose Ultra Warm, with double the thickness.