I typically wear a medium. I tried my two shirts on and realized based on the size you deem as a medium is slight too small. I should have ordered a large. I washed in cold water and did not use dryer and hung to dry. This is the problem with purchasing on line and not being able to try a garment on prior to purchase. I typically don't buy cloths on line for this reason and once more disappointed. I want a shirt fitted because I am physically fit but too tight is not a good look in a T shirt.