For businesses that need to keep their packing list and invoice together and visible on every outbound shipment, these combination packing list/invoice enclosed envelopes handle both in a streamlined design. Rather than tucking financial documents in the box where they can be missed, these envelopes mount on the outside of the carton, keeping both documents protected, organized, and immediately accessible to receiving teams. Made from heavy 2 mil poly, they're built to withstand handling and the environmental exposure of transit.