Presentation Bags/Envelopes

[F-Stop]

I've been trying to find a good place in the US to purchase some photo bags/envelopes for presentation to customers. I'm not having very much luck finding what I'm looking for. I'm really not even sure what they would be called.

Any ideas? I'm not wanting anything fancy, just simple bags or envelopes in assorted sizes up to holding a 16x20.

 

[F-Stop]

nvm... lol. I found some.

 

[Mostly Vintage Cameras]

Try DW Viewpack (Diane Waverly)
I guess B&W in New York would carry them.