CASTELLI ACTIVE COOLING SLEEVELESS BASE LAYER

The Castelli Active Cooling Sleeveless baselayer is built for hot days. Constructed from hydrophilic and hydrophobic yarns, holds just a bit of moisture next to your body. The open-knit construction allows air to flow freely through, so you get the effect of evaporative cooling directly on your skin. For best results, Castelli suggests paring this with their lightest jerseys like the Climber's or Superleggera, but it'll work great with anything that's highly breathable.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 Sublimated overprint