Pack Of 100 – 6″ x 9″ Grey Mailing Bags | Strong Self Seal Poly Postage Plastic Bags

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Strong & Tear ResistantDurable co-extruded polythene for secure posting
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Water-Resistant ProtectionHelps protect parcels from moisture, dirt and rain
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Opaque Grey Mailing BagsConceals parcel contents for discreet, secure shipping
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30% Recycled MaterialMade with 30% recycled material for everyday shipping
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Lightweight Postal DesignLow-weight packaging helps keep postage costs down
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Ideal for E-commercePerfect for clothing, accessories and online orders
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Arrives: Tue 29 Sep
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Grey Mailing Bags
– Strong Self Seal Poly Postage Bags

Our grey mailing bags provide a strong, lightweight and practical packaging solution for businesses sending clothing, textiles, accessories and other non-fragile products. Made from durable 55 micron co-extruded polythene with 30% recycled content, these poly grey mailing bags feature an opaque grey finish for added privacy and a convenient self seal adhesive strip for fast, secure packing. The water-resistant outer material helps protect parcels from rain, dirt and everyday handling during delivery, while the smooth surface makes it easy to apply address labels and courier labels. Available in multiple sizes, these grey postage bags are ideal for eCommerce order fulfilment, online retailers, clothing businesses and everyday parcel shipping.

Key Features

  • Strong 55 Micron Construction: Made from durable co-extruded polythene to help resist tearing and punctures during normal packing.
  • Fast Self Seal Closure: The integrated peel-and-seal adhesive strip allows parcels to be packed securely.
  • Opaque Grey Finish: Helps conceal the contents of your parcel for greater privacy & professional appearance.
  • Water-Resistant Protection: The polythene outer helps protect packaged items from rain, splashes, dust & dirt while in transit.
  • Lightweight & Space Saving: Poly postage bags add minimal packaging weight and take up considerably less storage.
  • 30% Recycled Content: Made using 30% recycled material && recyclable where suitable recycling facilities are available.
Grey Poly Mailing Bags for Postage Strong Self Seal Grey Postal Bags
Grey Mailing Bags for Parcel Packaging

Product Specifications

Product Type:  Poly Mailing Bags
Material:  Co-extruded polythene
Thickness:  55 micron
Colour:  Grey
Closure:  Peel & seal self adhesive strip
Finish:  Opaque
Protection:  Water, tear & puncture resistant
Recycled Content:  30%
Size Range:  6" x 9" to 34" x 42"
Suitable For:  Clothing, textiles, accessories & non-fragile goods

Quick & Easy Packing

How to Pack Poly Mailing Bags
1
Choose the Right Bag Size: Select a mailing bag that comfortably fits your product while leaving enough room to close the adhesive flap without stretching or overfilling the bag.
2
Place Your Item Inside: Insert clothing, textiles, accessories or other suitable non-fragile goods. Add protective wrapping inside the bag if the product needs additional cushioning.
3
Peel & Seal: Remove the backing from the adhesive strip, fold the flap over the opening and press firmly along the full width of the seal.
4
Attach Your Shipping Label: Apply the address or courier label to a clean, flat area of the bag and make sure barcodes remain smooth, visible and easy to scan.

Choosing the Right Mailing Bag

For the best fit, choose a bag slightly larger than the item being packed and allow additional room for bulky or folded products. Avoid overfilling, as excessive pressure can place unnecessary strain on the material and adhesive closure. Sharp, fragile or easily damaged goods should be packed with suitable protective packaging before being placed inside the mailing bag.

Poly Mailing Bag Storage and Recycling

Storage & Recycling

  • Keep Bags Clean & Dry: Store unused mailing bags indoors in a clean, dry location away from excessive heat, moisture and direct sunlight.
  • Protect the Self Seal Strip: Keep the adhesive area free from dust, moisture and contamination until the bag is ready to be sealed.
  • Recycle Where Available: The polythene material is recyclable where suitable collection facilities exist. Check your local flexible-plastic or polythene recycling guidance before disposal.
  • Use the Right Packaging: For sharp, fragile or heavy products, use appropriate internal protection or a stronger outer package where required.

Ideal For

eCommerce Orders

A practical packaging solution for businesses packing and dispatching online customer orders every day.

Clothing & Fashion

Ideal for posting T-shirts, trousers, knitwear, activewear and other soft clothing products.

Online Sellers

Suitable for independent sellers shipping suitable products through postal and courier networks.

Warehouses & Fulfilment

Lightweight, easy-to-store postal bags for efficient packing stations and high-volume order fulfilment.

Home & Business Postage

Useful for sending textiles, accessories and other suitable non-fragile items from home or the workplace.

Frequently Asked Questions

What are these grey mailing bags made from?

Our grey mailing bags are made from 55 micron co-extruded polythene and contain 30% recycled material. The lightweight construction provides a practical balance of strength, flexibility and protection for everyday parcel shipping.

Are these mailing bags self seal?

Yes. Each poly mailing bag includes a peel-and-seal adhesive strip. Simply remove the protective backing, fold the flap over and press firmly across the seal to close the parcel.

Are grey poly mailing bags waterproof?

The polythene material provides strong water resistance and helps protect contents from rain, splashes, dust and dirt during normal delivery conditions. They should not be treated as fully submersible waterproof packaging.

What can I send in postage bags?

Poly postage bags are especially suitable for clothing, textiles, accessories, soft goods and other non-fragile products. Fragile, sharp or easily damaged items should have suitable additional protective packaging.

What sizes are available?

Our grey mailing bags are available in multiple sizes from 6" x 9" through to 34" x 42", making it easier to choose suitable packaging for everything from smaller accessories to larger clothing and textile orders.

Are these mailing bags recyclable?

Yes. The bags are made from recyclable polythene and contain 30% recycled material. Recycling services for flexible plastics vary by location, so check your local collection or recycling guidance before disposal.

Can shipping labels be applied directly to the bag?

Yes. Address labels, courier labels and postage labels can be applied directly to the smooth outer surface. For reliable scanning, place the label on a clean, flat section and avoid folding or creasing the barcode.

Why choose poly mailing bags instead of boxes?

For suitable non-fragile products, poly mailing bags provide a lightweight and space-efficient alternative to rigid packaging. They are quick to pack, require little storage space and avoid unnecessary packaging bulk when a cardboard box is not required.

Are the contents visible through the grey mailing bags?

No. The opaque grey exterior is designed to conceal the contents, providing greater privacy when sending clothing, accessories and other suitable items through the post or by courier.

How do I choose the correct mailing bag size?

Measure the width and length of your product and allow additional room for its thickness. Choose a bag that closes comfortably without stretching the material or placing excessive pressure on the self seal flap.

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