Duofold Women's Expedition Weight Two-Layer Thermal #821A 100% Spandex 96% Polyester, 4% Spandex bi-ply fabric 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 Imported