The North Face® Men’s Warm Tights are lightweight, HyActive™ baselayer pants providing superior warmth in low temperatures. These thermal tights feature synthetic, double layer fabric to trap and maintain body heat. Excess moisture is drawn away from the body, resulting in a comfortable, dry fit. Read the full product feature list below. FEATURES Easy careFlatlocked seamsFlyHypoallergenicLightweightOdor resistantQuick dryingStain resistantWickingApproximative weight: 152 gFabric: 100% HyActive™ polypropylene