BLACK T-SHIRT AND RED THINGS ON IT!
These shirts are comfy as clouds. They will do a small amount of shrinking if you wash them in lava and dry them on the sun. (wash cold and dry on medium to low heat to avoid shrinking!)
Note: YL/XS are the same size and fit. I promise!
(Note note: That is me wearing a size small shirt, I am 6'2" and 170lbs during the photo, hopefully this helps you in picking a size!)