A1 Envelope Template. Download the size and format that works best for you. The size can be adjusted up and down as per the need.

These white a1 4 bar envelopes measure 3 5/8 x 5 1/8 each and feature a pointed flap. Luxpaper a1 invitation envelope in 80 lb baby blue for 3 1/2 x 4 7/8 cards, printable envelopes for invitations, with peel and press, 50 pack, envelope size 3 5/8 x 5 1/8 (blue) 4.5 out of 5 stars 22 $14.07 $ 14. Most commonly used for announcements, invitations, cards, small booklets, brochures or promotional pieces, these envelopes typically have square flaps and come in a variety of popular sizes.








