I usually wear 3xl even though I' only 5'8 because of my pot belly. I decided to try the 2xb because it's suppose to a accommodate that. It sure did. It fits great, looks good and is not tight at all. Note that the package came in marked 2xl not 2xb. I thought i was sent the wrong size. I wasn't. The 2xl marking was for their big and tall line not for a regular Izod polo.