Stay warm in extreme cold. Wear this Duofold shirt as base-layer thermal underwear.
- Lofty heavyweight fabric has two non-bulky layers. Inner layer is pure cotton, for softness next to your skin. Outer layer blends warm Merino wool with sleek polyester and nylon. Together, both layers trap air to create a thermal barrier.
- Tag-free banded collar won't itch or scratch your neck.
- Flat-lock seams won't chafe or dig.
- Stretchy ribbing trims cuffs for snug, shape-keeping fit.
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