This envelope sticks to packages to protect shipping documents from dirt and moisture.

Back-loading style forms tamper-evident pocket for papers

Pressure-Sensitive Adhesive
Dimension-Listed Open End
"Packing List Enclosed" Printed on Envelope
Tamper-Evident Pocket

The pocket must be torn or cut open to retrieve papers.

Pressure-sensitive adhesive sticks aggressively to paper, metal, wood, corrugated cardboard.