Stay warm in extreme cold. Wear this Duofold shirt as base-layer thermal underwear.
- Lush heavyweight fabric has two non-bulky layers. Outer layer blends warm Merino wool with sleek polyester and nylon. Inner layer is pure cotton, for soft, breathable comfort. Together, both layers trap air to create a thermal barrier.
- Tag-free banded crewneck won't itch or scratch your skin.
- Flat-lock seams won't chafe or dig.
- Generous fit, custom-sized for tall men.
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