As the first Two-Layer warm wear, Duofold Originals have a history of success going back to 1906. The Two-Layer construction combines cotton next to the skin and wool in the outer layer, to deliver comfort, quality and thermal insulation.
Stay warm in extreme cold. Wear this DuofoldŽ Shirt as base-layer thermal underwear.
Lofty heavyweight fabric has two non-bulky layers.
Outer layer blends warm Merino wool with sleek polyester and nylon.
Inner layer keeps it simple: 100% pure cotton for softness next to your skin.
Together, both layers trap air to create a thermal barrier.