These extruded PE envelopes can offer 3 different types of closure :

- Economic : permanent closure
- Standard : leaves a void message when opened
- High security : with water soluble ink.

These envelopes can be entirely personalised, in dimensions and text (MOQ 10.000 pcs)

Options :

- Printing on the outsides
- Progressive numbering
- Barcodes
- Holes
- Outside pocket to put delivery notes