Duofold Women's Dri-release Wool Mid-weight Single Layer Thermal Ankle Length Pants  #391B 100% Spandex base-layer-underwear closure 84%Polyester, 11% Merino Wool, 5% Spandex Tops have drop tail for added comfort and protection, Bottoms incorporate a drawcord for a custom fit 360 stretch for maximum flexibility and optimum fit, excellent moisture management, quick drying and odor resistant TAGLESS for added comfort and flatlock seams to help avoid irritation