2.25 mil returnable poly mailers are dual-seal shipping envelopes designed for efficient eCommerce fulfillment and streamlined product returns. Made from co-extruded LDPE (low density polyethylene), these poly mailers offer excellent tear resistance, moisture protection, and shipment privacy with fully opaque construction. The 2.25 mil thickness provides dependable durability while maintaining lightweight shipping efficiency. Featuring dual anti-static self-seal adhesive strips and tear perforations, they support outbound delivery and easy returns using the same package. Commonly used in warehousing, distribution, and retail logistics, these LDPE mailers are ideal to buy in bulk, with bulk supply and wholesale pricing available.
