Dave, what bags are you referring to?
At first I thought 100# bags green beans come in. Then I thought you might mean some other kind of bag. But alas I just realized you might mean retail packaging?
There seems to be a number of options on the market. I too am looking into this as I am looking to cultivate, roast and ship retail coffee.
There are clear bags that show off your coffee, but light could degrade it. Then you have with or without valves, mylar bags, foil, etc.
Am I off the mark?