The Women's Terramar Thermasilk underwear top is made from 100% pure silk and is incredibly light and warm! Natural, pure white, glossy and soft, this scoop top is an ideal underwear top for outdoor activity. All Terramar Thermasilks come with the EC2 Qwik-Dri Electrostatic process, which has the ability to actually lift the moisture molecules away from the body and break them down for rapid evaporation. Since the EC2 Qwik-Dri process alters the molecular signature of the yarn in the fabric, the moisture control is permanent. It won't wash out or wear off.Color: Natural White