I've been wearing this shirt almost every day since it arrived. I bike and lift weights almost every day and it comes with me. It's very comfortable in both hot and cool weather (it's fall in Alabama, so we've had enough of both, I assure you). The fabric of this shirt is incredibly soft. This is without a doubt the most comfortable long sleeve shirt I own. I also like the fit of this shirt. I ordered a large and am an "overweight" guy at over 210lbs - this shirt still fits me comfortably and leaves plenty of room around my waist. Whether you're a serious athletic type or just looking for a nice shirt for hiking or weekend activities, I think this shirt is a great option. The wearing comfort is incredible and the fit is just great. It's also very easy to keep cool while wearing it. I have no complaints. Highly recommended