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Collection: 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

6 products

Polyethylene Shipping Mailers - 330 x 250mm
Eco Product

Polyethylene Shipping Mailers

Regular price From £0.08
Sale price Regular price
White Eco Friendly Polyethylene Shipping Mailers - 410 x 410mm
Eco Product

White Eco Friendly Polyethylene Shipping Mailers

Regular price From £0.36
Sale price Regular price
Wide Grip Seal Bag - 115 x 115mm

Wide Grip Seal Bag

Regular price From £0.07
Sale price Regular price
Anti-Static ESD Bag - 229 x 114mm

Anti-Static ESD Bag

Regular price From £0.16
Sale price Regular price
Document Enclosed Holder - No 235 x 315mm

Document Enclosed Holder

Regular price From £0.07
Sale price Regular price
Anti-Static Pink Conductive ESD Bag - 102 x 152mm

Anti-Static Pink Conductive ESD Bag

Regular price From £0.10
Sale price Regular price

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.

Customer Feedback

What Our Customers Say

See why we’re trusted as by thousands of UK businesses for packaging and envelopes through our customer reviews.

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Envelope Printing Customer

Branded envelopes that felt event-ready

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.

Woman with long brown hair wearing a beige top against a plain background

Envelope Customer

Quick fix after an order issue

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.

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First Time Customer

Fast support when delivery went wrong

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.

Woman wearing a yellow sweater with a plain background

Wholesale+ Member

Reliable support for regular orders

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.

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Envelope Printing Customer

Easy custom printed envelope order

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.

Man wearing a light gray sweater over a collared shirt on a plain background

Wholesale+ Member

Helpful and easy to deal with

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.

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Sample Customer

Helpful advice before ordering

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.

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Packaging Customer

Useful support for flat pack cartons

Useful support for flat pack cartons