DickiesMen's Long Sleeve Fisher Stripe Cotton Coverall

if the size chart indicates large is my size but large is not one of the options to pick.....which one would you guess at getting? Thanks

Iooking for a Long slv 42Large. My coverall is 40 large it's too tight to get off when i'm sweaty. what size would you suggest based on these sizes?

I'm 6'2'' and 305 lbs. I do have a big stomach. What size would fit me?

What's everyone experience with shrinking? The fit good, but they are made of cotton. Are they pre-shrunk?