Be it work, travel or play; this vest is treated with N9 Cool It Technology that will keep you upto 3°C cooler when in contact with sweat or moisture. Lab Tested. So stay cooler than the rest; Anytime, Anywhere.1.Cool It Technology: Be it work, travel or play; this vest is treated with N9 Cool It Technology that will keep you upto 3°C cooler when in contact with sweat or moisture. Lab Tested. 2.Moisture Activated: Responds dynamically to reduce heat in the presence of moisture. 3.Performance: The strongest cooling agent that generates upto 3°C cooling when in contact with sweat or moisture.