2.5 mil postal approved poly mailers are heavy-duty shipping envelopes designed for secure and efficient eCommerce fulfillment. 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 2.5 mil thickness provides added durability for demanding transit conditions, while the self-seal adhesive closure delivers tamper-evident security. An anti-static strip improves packing efficiency in high-volume operations. Commonly used in warehousing, distribution, and online retail shipping, these LDPE mailers are ideal for businesses looking to buy in bulk, with bulk supply and wholesale pricing available.
