sometimes the edges of the flap of envelope when you peel to seal it don't stay down or lift up. would be nice if the glue seal went all the way from end to end so the flap stays down.
All we wanted were #10 envelopes. These were very inexpensive...actually on sale when we bought them...had security printed lining and self adhesion. Just right.
I like these envelopes because they are truly security(no see through) when sending money or checks in the mail they are great. I also like that You do not have to lick or moisten them just peel & seal. Really good quality paper.