These envelopes can be fully custom printed. It looks especially good when you print a bold slogan right across the envelope. That makes people curious about your mail! By the way: the envelopes can be stored for up to five years – so there’s practically no such thing as ordering too many. C6, C5, C4, DL, C6/5 or square front and back with print and/or finishing numerous materials, including offset papers, 120 g kraft paper, 350 g white offset and fine Gmund branded papers optional finishing with blind embossing or various hot-foil stampings inside with number pattern, solid grey or white, or custom print envelopes can be stored for at least five years under optimal conditions with self-seal strip available from 10 pieces Note: kraft paper envelopes are not suitable for automated processing; additional costs may apply when sent as Dialogpost. Note: depending on configuration, with FSC® or PEFC certification (licence codes: FSC-C146549 / PEFC/04-31-3130).