The proCOOL T with Mesh Base Layer is our best selling short sleeve, warm-weather-oriented base layer. It's ideally suited for temps ranging from 50-90 degrees, with its versatility rooted in the engineering of its fabric. proCOOL is a continuous hexachannel filament -- meaning that each fiber has six channels -- made to pull perspiration off your body at a torrid rate when you're sweating on a hot day. What's interesting, though, is the fact that the channels are hollow, so on cooler days warm air gets trapped inside the channels, allowing you to retain body heat.

Fabric technology aside, one other vital detail that sets this Craft T aside is its ergonomics. Craft uses what they call 3D cutting lines. You won't see any straight seams on the proCOOL T. The panels and seams are curved identically to the shape of a cyclist reaching for the handlebars. Unlike other base layers that make you feel like you're squeezing into a mesh tube, the proCOOL T complements the curvature of your torso and arms. The comfort difference is evident as soon you start pedaling.

You get proCOOL on the front and rear portions of the T, and lighter mesh proCOOL panels on the side and portions of the back to give it excellent air permeability and ventilation. Available in White in sizes Small-XXL.