Under Armour Coldgear Quarter Zip is the ultimate in versatility, delivering ColdGearŽ moisture transport and thermal regulation in a loose fit. Wear it as added protection from the elements, or on its own for cold weather breathability. 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.