Duofold Women's Varitherm - Long-Sleeve Thermal-layer Crew Sweatshirt polyester, spandex base-layer-underwear closure Super-soft fabric stretches four ways for maximum ease of movement. Plus, it locks in your body's warmth, wicks moisture for chafe-free comfort, helps control garment odors, and even resists pilling. Sleek feminine fit follows and flatters your curves. Perfect as thermal underwear yet nice enough to wear solo  with pretty contoured hem and flattering princess seams. Fiber Content: 96% Polyester / 4% Spandex Jersey