Review on Hanes Boys' Tank Tops - Pack of 3 by Guillo Tilden

I originally bought the M but it was too small for my 11 year old even though I am an M size and wear a size 12 shirt. Np I gave medium to his little brother, a bit big since he was 6 years old but he is growing up and bought a big one. As you can see from the photos, it's about an inch or two longer, but it's still just as snug as the width is the same. I had to help him take off the shirt he was trying on, it was so tight. Oh and I don't understand why they are different guys. Large speaks of comfort, soft, medium - no.