When the gradients, the temperature, and your heart rate are going in the reds, the Speedwear Cooling Jersey is made to keep your body cool. The Polartec Delta fabric will use sweat to cool you down and regulate your core temperature, so more energy is conserved for climbing. As the most comfortable item of our Speedwear line, you don’t have to worry about this clingy sweaty feeling that causes friction and skin irritation. So, eyes on the road and aim for the KOM.