Straight Flap

Flat documents, catalogs, brochures, photographs, invitations, and other paper pieces are easier to insert through a wider side opening. The JAM Paper straight-flap booklet envelope range includes compact A2 styles through larger 9 x 12 inch options with gummed, self-seal, and peel & seal closures. Paper and plastic options cover business mail, event stationery, records, and document mailing.

Flat documents travel more neatly in booklet envelopes sized for business papers, marketing pieces, photos, catalogs, and mail. Smaller invitation sizes sit beside larger document envelopes, while closure choices include traditional gum and quick-seal options. Paper styles give mailings a classic surface, while plastic styles add durability for contents needing extra protection.

Side-opening construction makes papers, brochures, booklets, photographs, and presentation pieces easier to insert and remove without folding. A broad mix of sizes, colors, materials, and closure styles lets users match each envelope to the contents and mailing method. These booklet envelopes handle office mail, school documents, direct mail, client packets, catalogs, event stationery, and document distribution.