Product details:

This Travel Tech polo shirt features a unique fabric technology that maintains the optimum microclimate for your body. Named 37.5, it 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. Contrast stitching for added detail. 60 cotton, 40 37.5 polyester. Machine washable. Imported. Size XXL and all Tall sizes come in Tailored Fit. All other sizes come in Traditional Fit.