The golf polo shirt owes its popularity among golfers to the dress codes maintained by many golf courses, which requires that men wear a collared shirt in order to play.
This likely dates back to the early days of modern golf, when men would wear a shirt, tie, and jacket to play. (Women of the times who chose to play typically wore dresses while playing.) The dress code in golf has relaxed quite a bit (with some courses—particulaly municipal courses—not maintaining a specific dress code at all), but the collared polo shirt has become so entrenched in golf that it's hard to imagine the game without it.
At GlobalGolf, we carry golf polos in a wide variety of sizes, colours, and patterns from the top apparel manufacturers in golf, including Nike, adidas, Oakley, and more.