Duofold??? Varitherm??? Expedition-Weight 2-Layer Long-Sleeve Men's Crew Shirt-

When you're active outdoors in extreme cold, you've got to play it safe. So, wear this Duofold men's shirt as base-layer thermal underwear. Sleek expedition-weight fabric traps your body's heat between two thermal layers. (Result: maximum warmth.) Fabric also stretches four ways for total freedom of movement...wicks moisture away from your skin to head off sweaty chills...even controls garment odors. Tag-free crewneck delivers itch-free comfort. Smooth flat-lock seams go easy on your skin. Drop