One of the main functions of a golf hat is to provide sun protection. The game of golf is usually played outdoors, with players exposed to the sun for extended periods of time. The brim is designed to block the sun and protect the face, eyes and neck from direct sunlight, reducing the risk of sunburn. In addition, the visor can also help prevent the sun from reaching the golfer's eyes, reduce glare, provide better vision, and enable golfers to see the fairway and hole more clearly.