Leader Paper Products Leader A1 Envelopes (3.625"X5.125") 100/Pkg, White

I was researching envelopes to buy for a return response card for my wedding. Our card is 3-1/2 x 4, so I was naturally looking for envelopes smaller than this to fit the card just right. To my dismay, there really is nothing of the size I hoped for so I went with these.Let me say, I am glad I did. It fits well inside a larger envelope and the return card glides right in and sits perfectly between the folds. I would recommend using this size envelope for a range of card sizes from 3x3 to 3-1/2 x 5. It has great flexibility :)

These are just the right size for thank you notes or response cards and they are thick enough that your cards does not show through.

It is okay, but the envelope is thin and flimsy. I am used to envelopes that have substance so I was disappointed. It works for my needs, but I will pay the extra dollar or two for a more substantial and professional looking envelope.

These envelopes are not made cheaply, and work great as self-addressed return envelopes which is exactly what we needed. They fit great inside A2 envelopes (greeting envelope size). They were delivered quickly and faster than projected.

I’m only giving this product a 1 star because it only came with 93 not 100 count. Just envelopes but still give the right amount.

They work badly in a printer

These are WAY better than any other envelopes I've used. They may be thin, but they're just envelopes. I've added a picture of how thick the gum is, these will seal EVERY TIME. I highly recommend these over other products which you may end up having to throw away because they will not seal.

Great price, exactly what we needed for our wedding RSVP cards. Other people mentioned that they are see-through but I didn't find that to be an issue. They are thin, yes, but you can't really see what is inside the envelope.