Castelli Active Cooling Sleeveless Shirt
When it's scorching outside, the last thing you're thinking about doing to cool down is putting on more clothing. Castelli has come up with a fabric that combats this way of thinking. The Active Cooling sleeveless layer is made with Prosecco Ice fabric to regulate body heat and give you a visual indication of where it is working by activating a dynamic print. This genius technology cools you down and aids in the evaporation of perspiration. Add in a UV protection of SPF 50 and you've got a baselayer you'll be reaching for on the hottest summer rides.