| Duofold Mens Oringinals Ankle Length Bottom 410B. Two-layer thermal for warmth in very cold weather. Cotton inner layer for next-to -skin softness. Natural performance of Merino Wool. Tagless tops and bottoms. Flatlock seams to help avoid irritation. Fly front bottoms with wicking waistband. 100% Cotton inside / 50% Cotton, 40% Merino Wool, 10% Nylon outside |