A2 (4 3/8 x 5 3/4) Invitation & Announcement Envelopes have a Square Flap and a Booklet-Style design (flap runs along long dimension, top/back). The seal is a regular gum adhesive (the gum must be moistened to seal the envelope). All Dolphin Blue's envelope papers offered are 100% post consumer recycled, containing NO virgin wood pulp fiber. All envelopes are certified for FSC standards.
Dolphin Blue also provides printed envelopes. Tell us about your project by linking here: http://www.dolphinblue.com/pg-Quote-Request.html