This Traveler® suit separates jacket features a unique fabric technology that maintains the optimum microclimate for your body. Powered by 37.5© Technology, removes moisture at the vapor stage before sweat can form. 37.5© acts like a thermostat by removing moisture when you are hot and retaining warmth when cold. It absorbs and traps odor molecules that are washed away when cleaned. Notch lapel, side vents, performance stretch lining. 66% wool, 30% 37.5 polyester, 4% spandex. Dry clean only. Imported.