LUXPaper 4Bar A1 Invitation Envelopes | Peel & Press | 3 5/8" x 5 1/8" | Navy Blue | 80lb. Text | 50 Qty

For those occasions calling for a dainty announcement envelope, the A1 (3 5/8" x 5 1/8") is your ideal choice - this diminutive envelope is the smallest of its kind allowed through the mail! The A1 envelope is a social and invitation-type envelope; it dimensions make it the most common-sized envelope used for RSVP and announcement purposes. Featuring an attractive square flap, the A1 fits inside all other "A" envelope sizes.