Courier Bags
COU
RIER
BA
GS
Poly Mailer/ Courier Bags
Qline tamper proof courier bags are made of Co-Extruded Polyethylene Films, which are black on the inside and white on the outside,Transparent bags and have a flap with a hot melt adhesive strip for quick and permanent sealing. Once sealed, the envelope cannot be opened; the only way to open it is to rip or cut it. On either side of the envelope, a clear overlapping pod jacket for inserting waybills or consignment notes, etc. is available.
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
- Recycled Content: Available
- 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
FAQs
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 flap 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.