What a deal!!! This Jos. A. Bank Traveler Collection Long Sleeve Polo features patented Travel Tech technology. 60% cotton and 40% recycled polyester made from approximately ten 100% used PET bottles. Traveler, performance cotton blend has many features: -maintains the optimum microclimate for your body -removes moisture at the vapor stage before sweat, can form -acts like a thermostat by removing moisture when you’re hot and retaining warmth when you’re cold -absorbs and traps odor molecules that are eliminated when cleaned -built-in technology won’t wash out