Polythene Bags

Polythene Mailing Bags

Secure and protect your mail with durable, lightweight polythene bags

Our polythene mailing bags are the economical and secure solution for dispatching literature, letters, documents, parcels, and other mailing products. Designed for businesses of all sizes, they reduce postage costs, protect your items from moisture and punctures, and provide an eco-friendly alternative to paper-based solutions.

Manufactured from Polylite™, Polycomp™, Polyair™, and Monolite™, our mailing bags combine strength, reliability, and sustainability, all at some of the UK’s most cost-effective rates.

Polythene Mailing Bag Specifications

The table below outlines key specifications for our polythene mailing bags, designed for durability, operational efficiency, and safe postal use.

Feature	Details
Dimension	125mm - 1000mm
Thickness	13mu – 70mu
Material	Polylite™, Polycomp™, Polyair™ & Monolite™
Closure	Peel and Seal, Self-Seal
Colour	8 colours with water based compostable inks
Eco-friendly and Sustainable	Uses less material and degrades faster than standard polythene. CO² neutral
Cost savings	50% less raw material usage reduces cost

Order Mailing Bags or
Request a Free Sample Today

Request a free sample to check size, strength, and seal quality before ordering.

Name *

Telephone *

Company *

Email Address *

Your Requirements *

* = Required

You agree to how we use your data as explained in our Privacy Policy

Submit

Why Choose Polythene Mailing Bags?

Lightweight & Cost-Saving

Our mailing bags are engineered to be thin yet strong, reducing postage costs without compromising durability. Perfect for high-volume shipping and e-commerce operations

Secure & Protective

Self-seal and peel-and-stick options help keep your items safe from damage during transit, providing reliable protection from moisture and punctures.

Eco-Friendly Options

All of our mailing bags are designed to use less material and degrade faster than standard polythene, helping your business reduce environmental impact.

Print Options

Our mailing bags can be printed in up to 8 colours using water-based compostable inks.

Reliable & Durable

Every bag is tested for tear-resistance, puncture strength, and handling, ensuring your products reach their destination intact.

Next day delivery on stock items within the UK when you place your order before 2pm
(excludes some parts of Scotland and Ireland). Additional charges apply.

Get in touch

Our Process

How to Order Your Polythene Mailing Bags

Choose Your Bags

Specify quantity, size, thickness and colour. Our team will advise on the best options for your parcels and postage requirements.

Request a Free Sample

Test bag durability, sealing, and print quality before committing to a bulk order.

Receive a Tailored Quote

Send your requirements and delivery postcode to our sales team. We’ll confirm pricing and any minimum order quantities for your chosen mailing bags.

Place Your Order

Order by phone or email. Our team will confirm payment options, invoicing or account terms for trade customers, and schedule your delivery slot.

Delivery and Goods Check

You’ll receive dispatch details and an estimated delivery date. Inspect goods on arrival and contact sales immediately if anything is missing or damaged so we can resolve it quickly.

About

Why Choose Polythene UK?

Here’s why customers choose Polythene UK for wholesale carrier bags:

15+ years of experience supplying businesses with durable, lightweight polythene bags
Performance-tested bags to ensure strength, durability, and reliability
Free samples so you can check the material, colour, and weight before ordering
Expert advice to select the right bag type, thickness, and material for your business

Mailing Bags FAQs

How are the bags delivered?

All bags are carefully packed to ensure they arrive intact and undamaged. Delivery is typically next day for stock items within the UK (orders before 2pm). Special delivery requirements can be accommodated.

What is the lead time for mailing bags?

Stock items are usually dispatched the next day. Custom sizes, colours, printed bags, or large orders may require additional production time, which will be confirmed when you request a quote.

Can I print logos or branding on the bags?

No. Our mailing bags cannot be printed with custom logos or branding, but they can be printed in up to 8 colours using water-based compostable inks for operational or decorative purposes.

What sizes are available?

Our mailing bags typically come in dimensions from 125mm to 1000mm and thicknesses from 13mu to 70mu. However, we can manufacture mailing bags to a specific size, should you require it.

Can the bags handle heavy items?

Our mailing bags are designed to protect letters, documents, and other mailing products from moisture and punctures. While thicker or multi-layer bags provide extra strength, these bags are generally intended for light to medium-weight items.

Are the bags reusable?

The bags are designed for single-use postal applications, but careful reuse is possible for internal handling.

How do Polylite™, Polycomp™, Polyair™ & Monolite™ compare?

Polylite™ – Lightweight and cost-effective; ideal for clothing, soft goods, and high-volume shipping.
Polycomp™ – Multi-layer, heavy-duty strength; suitable for heavier or high-value items.
Polyair™ – Padded with built-in air cushioning; protects fragile or sensitive products.
Monolite™ – Single-layer, recyclable design; reliable protection with a focus on sustainability.

Are the mailing bags recyclable?

Yes. All of our Polyair™ mailing bags are fully recyclable and carbon neutral.

What is the lead time for delivery?

Stock items typically dispatch the next day within the UK when orders are placed before 2 pm. Some items may have longer lead times.

Can I order in bulk?

Yes. Minimum order quantities vary by size and thickness. Contact our team for a tailored quote.

Payment options

We accept invoicing on account (subject to approval), proforma payments, and other trade-friendly methods.