LUXPaper A2 Invitation Envelopes, 4 3/8 x 5 3/4, Vista Blue Metallic, 500 Pack

A2 Invitation Envelopes (4 3/8 x 5 3/4) are versatile envelopes with a smooth finish. This envelope has a stylish square back flap, and is perfect for invitations, greeting cards, thank you cards, and is ideal for letters as it's designed to fit quarter-folded sheets of paper. Since the A2 envelope fits inside all larger "A" envelope sizes it's commonly used as an RSVP and return envelope, as 4 1/4 x 5 1/2 flat and folded cards fit inside. This A2 size envelope is easily sealed by a moistenable glue strip located on the back flap.