These 5 1/2" x 10" red "Packing List Enclosed" envelopes keep shipping documents securely attached to carton exteriors from pick-and-pack through final delivery. The bold red color and preprinted text allow receiving personnel to locate documentation at a glance, reducing mis-sorts and processing delays.

The side-opening design accepts standard packing slips and invoices without folding, making insertion fast during high-volume packing runs. The aggressive peel-and-stick adhesive bonds reliably to corrugated cardboard, poly mailers, shrink wrap, and other common shipping surfaces. These envelopes are a natural fit for e-commerce fulfillment centers, manufacturers shipping direct, third-party logistics providers, and retail distribution operations.

Constructed from 2-mil envelope material for durability throughout transit. Exterior dimensions are 5-1/2 x 10" and the envelope opens along the 10" side. Sold in cases of 1,000 and parcel-friendly for routine restocking.