Polar Cooling- The cooler has a built-in fan that pushes the cool air out. This fan works quietly, so it might not disturb your sports. The tool additionally has a water tank to preserve the clear out moist. You need to fill up it from time to time.   Facebook>>   https://www.facebook.com/TryPolarCoolingUSA/   Jimdo>>   https://get-polar-cooling.jimdosite.com/...