I bought these about 3 or 4 years ago and never wore them.
They are sixe XXL, have zippered legs and two zippered breast pockets, and they are made out of that "silent" material, don't remember exactly what it is called. I don't know what brand they are and can't find a manufacturerers tag inside them. I bought them at a local farm and home store.
$40 shipped or trade for whatever, just make me an offer.