Gusset Envelopes are widely used for the postage and transportation of larger documentation as the envelope offers increased internal space allowing for the insertion of greater content.
As the name suggests the Gusset envelope has a folding flap around 3 sides that allows it to expand to hold documents of between 20mm and 70mm in thickness.
Some of the many uses of the
Gusseted envelopes include the mailing of books, manuals and other bulky items that do not fit within standard sized envelopes