We use Jet Envelope for almost all our bulk mailings because we know they will have the price and efficiency and quality we are looking for.I have never once been disappointed in the final product.They are a joy to work with; always willing to answer my questions even when Im being a bit too persistent, willing to learn new tricks when I make a weird request, and most importantly when we agree on a deadline they hit the deadline.Ive sourced envelopes from a half dozen different companies and gotten pricing from two dozen more, but Jet is hands down my favorite to work with.(If my #2 favorite envelope supplier is reading this, your my #1 for everything else.)