That being said, Carhartt union suits are superior to all others that I have purchased and worn. They have plenty of buttons up the front of the suit and the last one my wife gave to me this past Christmas has a two button vertical flap. The wrist and ankle cuffs have the just the right snugness and don't stretch out. And, the brand name, "Carhartt," is proudly shown across the upper chest.
If you've never purchased or worn Carhartt or Champion Duofold Union Suits, you are really missing out!