Duofold Thermals are a basic essential for your everyday warmth in cool weather. Each style offers a two-layer protection barrier, exceptional moisture management and softness for superior comfort. Whether you are relating at home or watching your favorite sport, make sure you have Duofold Thermals as a part of your active wardrobe. Features: Two-layer thermal for warmth in cold weather - Flatlock seams to avoid irritation - Rib cuffs for secure fit.