Innovative fabric generates heat by absorbing body moisture Wicks moisture so you stay dry Just-right stretch so the fabric “gives” yet retains its shape Layers neatly under clothing 94% polyester/6% spandex. Machine wash. Imported Lightweight for easy layering – indoor and outdoor. For days you need a little extra something while inside (home or office) or outside, start with our Thermaskin™ Heat Cami. Its performance fabric not only maintains your body’s heat but actually helps generate heat by absorbing body moisture. It also wicks perspiration away from your skin, which is crucial for comfort in cold weather. It’s ultra comfortable too, so soft and smooth next to your skin.