If you were called up to Team Ineos you'd receive this model of jersey in your kit. Pros ride in thermal jerseys more than jackets since the intensity is high enough that they look for maximum breathability. They asked for this extremely warm and thickly brushed fleece fabric that is comfortable in fairly cool conditions yet maintains excellent wicking and breathability since there's no membrane to trap the moisture in. It has three generous rear pockets, an easy-sliding YKK® Vislon® zipper and silicone gripper elastic to hold it in place. The fit is close to body but not a race fit.