These 10 x 13 inch blue poly mailers are built from 2.5 mil polyethylene — a lightweight yet durable construction that resists punctures, tears, and moisture through the demands of standard parcel handling. The colored exterior makes shipments immediately distinguishable on the pack line and during transit without adding weight or dimensional bulk.

Well-suited for e-commerce fulfillment, retail replenishment, and warehouse distribution, these mailers accommodate soft goods, documents, apparel, and other flat or flexible items. The blue exterior accepts labels, stamps, and direct ink adhesion and is compatible with both thermal and standard label printers common in high-volume fulfillment environments.

Each mailer features a self-seal adhesive strip that secures the closure without additional tape or equipment at the pack station. The silver inner lining provides a clean contrast for contents and reinforces the envelope's structure. Sold in cases of 100.