If you're looking for tight leather, this isn't it. Definitely not loose or baggy - good for an athletic body type. If I were 20, the skin would naturally be tight. I'm in my 50's (no dad), 6ft 1in, 185lbs - size perfect!
Pros
Great shirt but definitely a little heavier than I thought it would be, not that light
Cons
May not be flexible enough for certain athletic movements.