10% off
Built for the hottest days out there. Active Cooling uses hydrophilic and hydrophobic yarns together with an open-knit construction to hold a touch of moisture against your skin, so evaporative cooling keeps your core temperature in check while air moves freely through the fabric.
- Polartec Delta knit fabric for regulated evaporative cooling
- Open-knit construction for maximum airflow
- Sleeveless, minimalist cut to keep bulk to a minimum
- Best paired with Castelli's lightest, most breathable jerseys
- Ideal for hot-weather riding, roughly 25–35°C