You're an innovator on the course and in life. As such, Tour Authentic by Callaway is the only choice. The collection fuses together artistic craftsmanship, luxurious materials, and technical innovation. Designed for the elite player seeking the best in form and function, this super blend merino wool heathered polo is at the top of its class. Naturally engineered to regulate temperature, it keeps you cool in the heat and warm in the cold.