Strong Large Mailing Postal Postage Bags - 9 x 12 inch - Grey - 100 Pack

These iSOUL opaque mailing bags feature a permanent self-seal closure and are constructed from a d...

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Amazon100x Strong Large Grey Mailing Postal Postage Bags 6x9 Packaging Mailers, iSOUL [Use in Parcel, Delivery, Shipping, Mail, Package] [Plastic Envelopes] Grey
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eBayiSOUL Strong Large Grey Mailing Postal Postage Bags 12 x 16 inch, Baby Pink
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Product Information

Full details

These iSOUL mailing bags are designed for small business owners and individuals who require a secure, reliable solution for shipping goods. Constructed from a durable 60-micron film, they offer excellent protection against environmental elements like water and dirt during transit. While they are highly effective for shipping soft goods like clothing or documents, the caveat is that they provide no rigid protection, so they are not suitable for fragile or sharp-edged items that could puncture the plastic.

All features

Model Part NumberIS MAILING BAGS 100PK
BrandiSOUL

Extended Product Information

FAQs

Are these bags recyclable?

Most courier-grade mailing bags are made from LDPE (Low-Density Polyethylene), which is recyclable at major supermarkets or plastic film collection points.

Can I use these for shipping fragile items?

These bags do not provide padding; you must wrap fragile items in bubble wrap or use a protective box inside the bag for safety.

Is the seal truly tamper-evident?

Yes, the permanent self-seal adhesive is designed to tear the bag film if an attempt is made to open it, revealing any interference.

What is the thickness of these bags?

These bags are constructed from a 60-micron film, providing a balance between lightweight flexibility and tear resistance.

Can I write on these bags with a permanent marker?

Yes, you can easily write shipping addresses or tracking numbers directly on the bag surface using a permanent marker.

Will rain damage items inside?

The bags are water-resistant, protecting the contents from light rain and damp conditions during normal transit.

Troubleshooting

Adhesive flap is not sticking properly

Ensure the surface is free of dust or debris before pressing, and apply consistent pressure for 5-10 seconds.

Bag punctured during transit

Ensure that items with sharp edges or corners are wrapped in bubble wrap or cardboard before being placed inside the mailing bag.

Pros and Cons

Pros

  • Permanent adhesive prevents accidental opening
  • Highly resistant to tears and moisture
  • Lightweight construction reduces overall postage weight
  • Opaque finish ensures shipment privacy
  • Cost-effective solution for high-volume shipping

Cons

  • Not suitable for fragile items requiring impact protection
  • Sharp objects can puncture the film
  • Single-use only due to permanent adhesive

Setup, Compatibility & Care

To use these bags, simply insert your item, peel back the protective strip from the adhesive, and fold the flap down onto the bag to seal. No tape or additional adhesives are required. These bags are compatible with all major courier services, including Royal Mail, UPS, and FedEx. To maintain the integrity of the bag, store the unused supply in a cool, dry place away from direct sunlight; prolonged exposure to UV light can eventually degrade the adhesive properties and cause the plastic film to become brittle over time.

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