Tracksmith Navy Session Runners Jacket. Lightweight stretch knit with full zipper mock neck closure and embroidered logo on chest. Bravio Blend Mesh Panels For Breathability. Approx. measurements shown in pics. Good pre-owned condition. Please see all detailed photos provided in listing. Retail $128. Men’s Sz Small ABOUT THE JACKET: Tracksmith designed the Session Jacket to be one of the most versatile and durable pieces in your training wardrobe, working just as well for warm-ups, long runs and recovery days. Made from a soft, high-stretch fabric with micro-mesh side panels for breathability. Inconsistent temperatures and unexpected precipitation are a fact of training and racing outdoors. So rather than the traditional shell that might keep you dry in a downpour, but otherwise feels like you're running in a garbage bag, runners need a jacket that performs in a wide range of conditions. The Session Jacket is lightweight but has a warmer hand-feel that insulates better than a traditional windbreaker. It also has mesh panels under the arms and down the side panel, allowing for more breathability as temperatures rise. And unlike non-stretch woven fabrics used in other jackets, the Session Jacket has high stretch and recovery for improved range of motion.