Castelli 2014 Core Mesh Sleeveless Cycling Base Layer A13029

THE NEXT TO NOTHING BASE LAYER. This is the perfect minimalist piece to keep you cool in warm weather. The fully open mesh serves mainly to hold the jersey off the skin, creating a layer of air between your skin and the jersey to help you maintain a constant body temperature. The fabric absorbs practically no moisture, and it weighs next to nothing so it wont weigh you down.