Have you heard of envelope icing?
It can be compared to icing on a cake – meant to add a decorative touch to the outside appearance. Envelope icing is a printed label that wraps around one side of your wedding invitation envelopes from the front to back.
Design choices vary as to what is printed on these labels. Some show your initials or names while some come printed with an entire return address to appear on the back of the envelope. The front has space for handwriting your guest’s mailing address. Some designs even match specific wedding invitation patterns.
The design shown here actually lets your guests know the actual wedding date before opening the invitation.