Courier Bags
Poly Mailer/ Courier Bags
Poly Mailers – Durable, Tamper-Proof Shipping Bags for Secure Transit
As a trusted poly mailer manufacturer, Qline Packaging offers durable, tamper-proof poly mailers designed to provide maximum protection for products during transit. Our tamper-proof courier bags are manufactured using high-quality co-extruded polyethylene films that deliver superior strength, reliability, and security. The black interior and white exterior design enhances privacy and protection, helping prevent unauthorized access or tampering during shipping.
Equipped with a self-adhesive hot-melt sealing strip, our poly mailers provide a strong permanent seal that keeps the contents secure until delivery. Any mechanical attempt to open or tamper with the mailer will cause it to tear, making tampering immediately visible and ensuring the safety and integrity of every shipment.
Qline courier bags are commonly used by online retailers, couriers, and logistics organizations.
- Material: LDPE / LLDPE
- Thickness: 51 to 150 micron
- Maximum bag size: 30 x30
- Minimum bag size: 5″ x 5″
- Printing: Up to eight color / Photo print
- Wicket option Available
Sequential barcode
Perforation
Bottom gusset
Airway bill pouch (Jacket)
Twin seal
Wicket bags
2 time use return bags
Easy tear frustration free bags
Top open with D-cut handle
Bottom open with D-cut handle
Key Features & Business Benefits
- Tamper-Proof Security: Each poly mailer features a hot-melt adhesive strip, offering a permanent seal that’s impossible to reopen without clear evidence of tampering—ideal for sensitive shipments.
- Durability for Safe Shipping: Made from co-extruded polyethylene, our poly mailers are puncture-resistant and tough enough to withstand rough handling, ensuring your products are delivered safely.
- Customizable & Flexible Design: Available in a variety of sizes and tailored to fit your specific packaging requirements. Custom branding options are also available for consistent, professional presentation.
- Convenient Document Handling: Each poly mailer comes with an integrated, clear overlapping POD (Proof of Delivery) jacket, designed for easy inclusion of waybills, consignment notes, or other shipping documents.
- Cost-Efficient & Lightweight: The lightweight material reduces shipping costs without compromising strength or security, offering a practical, affordable solution for high-volume shipping.
What are poly mailers made from?
Poly mailers are manufactured using high-strength co-extruded polyethylene films. This material provides durability, flexibility, and enhanced tamper-proof security during transit.
How do poly mailers ensure product security?
They come with a hot-melt adhesive strip that creates a permanent seal. Once closed, the bag cannot be reopened without visible signs of tampering, ensuring shipment integrity.
Are these poly mailers suitable for fragile items?
Poly mailers are best suited for non-fragile items. For delicate products, we recommend using Qline Bubble Mailers, which provide added cushioning and protection.
Where can I keep my invoice or shipping documents?
Our Poly Mailers with POD Pouch include a dedicated transparent pocket for invoices, waybills, or other shipping documents, keeping paperwork secure, visible, and easy to track.
Can tamper-evident bags be customized with Barcodes or QR Codes?
Yes. We can customize tamper-evident and tamper-proof bags with unique Barcodes or QR Codes for each bag. This supports seamless tracking, authentication, and enhanced supply-chain security across sectors like banking, e-commerce, healthcare, and logistics.
Can I customize poly mailers with my branding?
Absolutely. You can add your brand logo, colours, and messaging to the mailers to create a professional, consistent unboxing experience.
I only need a smaller quantity, where can I buy ready stock?
You can purchase ready stock directly from OnGoMart.com, our online platform designed for small businesses and startups that prefer low-quantity, fast ordering options.