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Mack WeldonMack Weldon


Engineered to warm you up
without weighing you down.

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Powered by Thermolite® Technology

Thermolite® is a hollow-core fiber that traps heat without weighing you down. We blended it with smooth modal and naturally moisture-wicking, odor-fighting wool. The result: lasting comfort, from shoveling snow to breakfast in bed.

Mack Weldon

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Mack Weldon

Crew Neck

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Mack Weldon

Long Underwear

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Mack Weldon


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Try it on. If you don’t love it, let us know, and we’ll help you find the right fit. 
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