In combining characteristics and advantages of the mailing envelopes and of the fund transport envelopes, the confidential envelopes are remarkable with high security devices (*) corresponding to the sensible aspect of carried or stored documents.
Principal uses (but not eliminative) in research, Justice, Police, Health, and diplomacy sector.
(*) Adhesives, materials, seams, numbering.
Also discover the "declared value", plastic envelopes, security bags...