| Duofold Youth Varitherm Mid Weight Ankle Length Thermal Bottom - Black KMC6 fiber content is 96% Polyester / 4% Lycra elastane jersey. Duofold Youth Varitherm Mid Weight Ankle Length Thermal Bottom - Black Features: Single-layer thermal for warmth in cold weather. Flatlock seams to avoid irritation. Bottom: Wicking elastic waistband for moisture control. Odor management, moisture control, and 360 degree stretch. previously 472A and 473B,/p>. Duofold Youth KMC6 comes with 1 Thermal Bottoms per Pack. |