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Polythene
Lightweight, waterproof, and available in a wide range of specifications. Polythene packaging covers postal mailing bags, storage bags, grip-seal formats, and specialist applications including anti-static options for electronics. Available in clear and white across a broad size range.
Browse related: Mailing Bags | Plastic Bags | Polyester
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Polyethylene Shipping Mailers
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White Eco Friendly Polyethylene Shipping Mailers
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Document Enclosed Holder
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Anti-Static Pink Conductive ESD Bag
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More About "Polythene"
Polythene are defined by polythene bags and sheeting. With 2 products in the range, they are used for protective wrapping, storage, industrial use where standard envelopes or packaging would not deliver the same level of presentation or function.
Available in over 5 sizes including 230 x 115mm, 160 x 120mm, 230 x 162mm, 305 x 230mm, 330 x 250mm and more, at 35–60gsm paper weight. Closure: peel & seal self-adhesive.
Benefits of Polythene
- Distinctive construction — polythene bags and sheeting that differentiates from standard formats.
- Size range — over 5 sizes to match your specific application.
- Quality stock — 35–60gsm for a premium result.
- Royal Mail compatible — qualifies as letter or medium parcel within standard weight limits.
Frequently Asked Questions
What are polythene best used for?
Polythene are the preferred choice for protective wrapping, storage, industrial use. The polythene bags and sheeting gives them a distinctive appearance or function that standard envelopes cannot replicate.
What sizes are available?
Polythene are available in over 5 sizes: 230 x 115mm, 160 x 120mm, 230 x 162mm, 305 x 230mm, 330 x 250mm, 410 x 410mm and more. Check individual product pages for full dimensions and capacity guidance.
Are they compatible with Royal Mail?
Yes — standard sizes qualify as letter or medium parcel within Royal Mail's size and weight limits. Always confirm weight and thickness with each specific size before committing to a postage format.
What Our Customers Say
See why we’re trusted as by thousands of UK businesses for packaging and envelopes through our customer reviews.
Envelope Printing Customer
We needed branded envelopes for a client event and they looked exactly right. The team were helpful from start to finish and made sure everything moved quickly so we could meet our deadline. A really smooth experience for printed envelopes.
Envelope Customer
My order arrived with a problem, but after I emailed the team I received a quick response and the issue was sorted straight away. It was handled professionally and made me feel confident about ordering again.
First Time Customer
There was an issue with the courier delivering to my address, but the team dealt with it quickly and kept things moving. A replacement was arranged and the previous order was refunded without any fuss. It gave me a good first impression and I would order again.
Wholesale+ Member
The courier caused a problem, but Jess and Kelly were quick to help and did everything they could to sort it. They also looked at the products I order regularly and helped make future orders easier. Good value, good quality and service that feels genuinely useful.
Envelope Printing Customer
Ordering custom printed envelopes was straightforward from the start. James answered my questions clearly, the order arrived when expected and the finished envelopes were great quality. I would be happy to use the service again.
Wholesale+ Member
A very straightforward company to buy from. The team were helpful, clear with communication and easy to deal with, which makes a big difference when ordering packaging regularly.
Sample Customer
The team helped point me towards the right product before I placed my order. It made the decision much easier and gave me confidence that I was choosing the right packaging for what I needed.
Packaging Customer
Useful support for flat pack cartons

