Number 6-3/4 Envelopes – Perfect for Checks & Everyday Mail

he Number 6-3/4 envelope (3 5/8" x 6 1/2") is a compact and versatile option for both business and personal mailings. Its small yet functional size makes it ideal for sending checks, invitations, small correspondence, and important documents. Whether you're using them for professional communication or personal invitations, our high-quality 6-3/4 envelopes provide a secure and polished mailing solution.

Dimensions: 3-5/8" x 6-1/2", Max. Enclosure Size: 3-3/8" x 6-1/4"