The Castelli Active Cooling Sleeveless Base layer features energy-activated technology to cool you more than just sweat evaporation. This incredibly light base layer also features 50+ UPF protection so it's ideal to use as a lightweight summer jersey.
- A.D. Key
Features: Made with Prosecco Ice fabric Energy-activated technology provides more cooling than sweat evaporation alone Dynamic print shows you where it’s working 50+ UPF sun protection Weight: 80g (Size Large)