Castelli Pro Issue Short Sleeve Baselayer White

The Pro Issue Shortsleeve Baselayer is all about those in between conditions. Incredibly lightweight and with plenty of breathability the Baselayer excels at keeping you dry underneath your jersey. The 3D mesh fabric creates dead air space next to your skin and the polyester fabric uses capillary action to move sweat away from your body. Not too warm, not too cool, and something that keeps the moisture away. That's what the pros want and you will probably want it too once you try it.