3M™ Non-Printed Packing List Envelope NP5 is a 7 x 10 unprinted, clear, side-loaded polyethylene envelope with easy and secure open and close. We designed this envelope with a high-tack rubber resin adhesive that sticks on contact to packages. Oil- and water-resistant, this packing list envelope securely protects documents from damage throughout delivery. - 3M non-printed packing list envelope NP5 features easy-to-remove liners, exposing high-tack adhesive for fast application. The envelope easily loads documents from the side for easy opening and can be easily applied by hand, providing fast and efficient processing.