The Brooks EZ III Flying B Running Shirt looks like a regular tee, but it's way more technical. The fabric in this shirt is designed to breathe much better than cotton, and to wick moisture away from the skin so you stay comfortable. The Flying B Shirt is semi-fitted, which means it isn't so loose that it will get in the way of your workout. This men's running shirt is also anti-microbial so it will resist odor buildup.
The Brooks EZ Flying B III T-Shirt has a flattering slim fit and a moisture-wicking fabric that's as soft as cotton, but way more technically advanced.