Awearness Kenneth Cole Men's Awear-Tech Sport Shirt

Made with AWEAR-TECH 37.5 technology this cotton-blend shirt features fabric that is triggered by your body temperature to either warm or cool itself depending on the situation. The active particles permanently embedded in the yarn capture heat from your body's infrared energy to speed evaporation and cool itself if there is moisture vapor (sweat) present, or retain that heat to keep you warm when no moisture is present.