The Under ArmourŽ ColdGearŽ SubZero mock is designed with a double layered fabric, compression fit and feminine silhouette to keep the female athlete warm and dry. Brushed inner layer and rotated seams bolster mobility and maximize moisture transport. It's warmth without weight through any game or workout. Best use for when it's cold. Keeping athletes warm, dry, and light. Ideal use: Temperatures under 55 degrees F. ColdGearŽ features a double-sided fabric that wicks moisture from the skin and circulates body heat. It accomplishes the impossible by keeping athletes warm without weighing them down. Also offers Ultraviolet protection that guards your skin from the sun's harmful rays and inhibits premature aging.