This is a very good basic large envelope for mailings too large or heavy for #10 envelopes or documents that cannot (or should not) be folded to fit into a #10 envelope. The only negative I can say about this envelope is that it lacks padding for more fragile mailings but Staples has 'bubble-lined' envelopes for those mailings. I do wish that Staples and all other envelope manufacturers use the same brightness systems for their envelopes as they do for their paper products. I also wish that Staples and other envelope manufacturers make 32-lb. versions of their 9" x 12" and larger envelopes as well as 28-lb. and 32-lb. versions of their #9 #10 #11 and #14 envelopes for heavier mailings. Overall this envelope is good for most basic and business mailings.
I use these envelopes in both my business and personal life. They are the perfect size for meeting handouts mailing items that can't be folded for standard-size letter mailing; they house scrapbook stickers cut paper images etc. and they stack nicely either vertically or horizontally. And why pay more for an item when you can get the same quality item and pay less? I can honestly say that I used these envelopes almost every day.