CASTELLI ACTIVE COOLING SLEEVELESS CYCLING BASE LAYER
By using hydrophilic and hydrophobic yarns, this base layer holds a bit of moisture next to your body while allowing free airflow through the fabric, thanks to the special open knit. You get evaporative cooling directly on your skin. We recommend using this with our coolest jerseys, like the Climber's or Superleggera, though it will work under any breathable jersey.
Polartec® Delta fabrics sit in the sweet spot or Goldilocks zone between cotton and polyester. They exhibit comfortable cooling pattern similar to cotton, but act more like polyester for dry times and maintaining breathability when wet.
-Base layer to cool you on hot days
-Polartec® Delta fabric features regulated drying so that the evaporative effect cools your core
-Sleeveless design with minimalist construction
-25°-35°C / 68°-95°F