Quality Park™ Packing List Envelopes have a self adhesive back with protective liner to permanently secure your shipping document or invoice. Top-loading, clear pouch has a bright orange PACKING LIST/INVOICE ENCLOSED message at top to make your documents easy to find. The clear window below allows shipping papers to show the address label so you save a step. Made of moisture and rip-resistant poly that can survive rain storms and rough handling. Clear Front—Full-size window allows shipping papers to show through and serves as address label. Seam Type: Weld; Flap Type: Square; Security Tinted: No; Opening: Open End.