Although I don't play golf, I do wear golf shirts, mainly for the moisture-wicking material. This shirt is 100% polyester so it's not as soft and comfortable as cotton, but it will keep you cool when it's hot and muggy outside. I'm 6'0", 160 lbs, 34" waist. I received this shirt in medium size and it fits well. There is freedom of movement in the shoulders and the waist is not too bulky. The white sides make it thin. While the overall feel and quality isn't the same as UA, it comes in a close second.