White A7 invitation envelopes are 7 1/4 inches by 5 1/4 inches with square gummed flap. Our premium 80# envelopes are made from 100% post consumer fibers PCF acid free. Envelopes are made to fit our wedding invitations. Envelopes are blank we recommend hand writing your return address or using our invitation labels sold separately. Click to view complete list of blank invitation supplies.