Me.
But every medium,large and extra large shirt isn't the same,different textures,styles,etc
But usually how it works for me is:
Medium shirt I look diesel as hell and people always think I'm around 215-220 when I'm only 205 at the moment. Started back bulking September 1st btw.
When I wear a large I look built still but my arms don't hug the sleeves much,but it shows my traps and how wide my back is.
When I wear and extra large I don't look big at all,but you still can see my traps and a little physique.
But it takes years to look jacked in a big shirt.