Order A9 Envelopes and get FREE shipping! Perfect size for mailing wedding or special event invitations, greeting cards or letters. Include your invitation or letter and also insert an RSVP card. A9 envelopes are often used to mail holiday cards, event invitations, announcements, or letters. The envelope can fit any insert measuring up to 5 1/2 x 8 1/2 inches or smaller. To use as a special event invitation envelope, include a smaller envelope such as an A1, A2, A4, A6, or A7 envelope. Include a small RSVP envelope as well as an invitation envelope.
Personalize your A9 Envelopes for your special event or party. Save time and provide a professional look for recipients. Add artwork and addresses by choosing the Printed option. Add custom designs to the A9 envelopes to create something special. We offer a large selection of A9 envelopes in a variety of colors. Choose from white or natural, bright Astrobright, or foil-lined envelopes. Use for a special occasion, or just for sending a larger card. A9 envelopes are available in standard or heavier paperweight and feature a large square flap with standard gum seal closure.