The good : right size / weight ; the bad : just-a-bit thin ; the ugly : very difficult to reopen ... when you suddenly realize that a very impportant item is NOT inside !
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.