I had intended to purchase regular #10 gummed flap envelopes requiring moisture to seal but that style came in such a large quantity that I decided to try the Staples Brand Easy Close Envelopes instead. I'm rather glad that I made that choice as these envelopes are much more convenient to use close securely with out licking or other messy procedures. The weight is heavy enough that you can't read what is in the envelope like some of the thinner envelopes that you can almost see through. I'm happy with my "second" choice!
like the Privacy tint easy close envelopes bought in error easy close envelopes be careful in purchase as packages a very simular and can be easily mistaken -- this is the hint of the day.