Discover high-quality black poly mailers designed for secure and private mailing, delivery packaging, and apparel transport. These durable express envelope bags feature a convenient self-adhesive seal and reliable protection against moisture, dust, and tears during transit. Product Overview Our poly mailing bags offer robust protection for your shipments while maintaining a lightweight profile to help reduce shipping costs. Designed for professional use, they provide excellent privacy and physical security for a wide variety of items. Self-adhesive seal for fast, secure closure without tape Waterproof and moisture-resistant construction Tear-proof, puncture-resistant, and dust-resistant material Lightweight design to minimize shipping expenses High privacy opacity for secure content delivery Technical Specifications Review the technical specifications for these poly mailer shipping bags: Product Name: Express Envelope Bags / Poly Material Custom Mailing Bags Application & Usage: Mailing Ad Packaging, Delivery Package Sealing & Handle: Self-adhesive Seal Material: Poly Feature: High privacy, environmentally friendly, waterproof, dustproof, safety, tear-resistant Available Sizes: 6x9 Inch, 10x13 Inch, 19x24 Inch, 14.5x19 Inch Thickness Options: 1 mil, 1.5 mil, 2 mil, 2.5 mil, 3 mil, 4 mil Customization: Silk screen printing, custom logo printing, embossing/debossing Use Cases These versatile mailers are ideal for e-commerce shipping, boutique apparel delivery, mailing promotional advertising materials, document dispatch, and everyday business logistics where secure, waterproof containment is essential. Frequently Asked Questions What items can I ship using these poly mailers? They are ideal for shipping apparel, soft goods, documents, and various non-fragile items requiring dependable protection against moisture and dust. Are these mailing bags waterproof? Yes, the poly construction provides waterproof and moisture-resistant protection to keep contents safe from rain and damp conditions during transit. How do I seal the envelope bags? Each bag features a convenient self-adhesive seal strip. Simply peel off the protective liner and fold over to create a secure, tamper-evident closure. Can I get custom printing on these poly bags? Yes, custom logo printing and silk screen printing options are available for customized orders.
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