I got these imported catalog envelopes for the proposals I am sending out. It comes only in brown, but the paper is a clean light brown, unlike those other envelopes that look like recycled paper. It looks very professional and is very durable too, because it is made up of high grade thick paper.
The size that I got is 6x9, which is actually a few mm short of what I need. What i really need would be 6.25 x 9.25 inche, the size of which is not locally available in our stores. So what I did was to trim down my proposal a little bit on three sides. Which was a little tedious.
But all in all this envelope worked well for me. I just wish that they came in bigger packages, as each package only contains 10 envelopes, so I had to buy 20 packs for the 200 pcs that I need, thereby paying for the retail price.