XPERT ENVELOPES
ENVELOPE INFORMATION
Envelope Sizes and Styles


Useful terms:
- Bespoke – made up envelopes to customer requirements. Not available from stock.
- GSM – the weight of the paper, measured in g/m2.
- Gummed – sealing method that requires moistening to seal.
- Gusset – an envelope with expandable sides.
- Mailing wallet / machinable – envelope for use on an inserting/mailing machine.
- Opaque – printed colour wash inside envelopes (usually for security reasons).
- Peel and seal – sealing method with a peel off strip.
- Pocket – envelopes with the flap on the short edge.
- Recycled – envelopes made from post-consumer waste.
- Self seal – sealing method where the two flaps are pressed together to form an instant bond.
- Wallet – envelopes with the flap on the long edge.