Duofold originals created the base layer category with the first bi-ply thermals soft cotton against the skin and paired with the natural warmth of merino wool for superior thermal insulation, perfect for a wide range of low-impact activities

• Flatlock seams to avoid irritation
• Tagless labels for more comfort
• Two-layer thermal for warmth in cold weather

Flatlock seams to avoid irritationHanesbrands - Duofold