Mail Bags Introduction | SR Mailing

Mail Bags Introduction

Plastic Polythene Mail Bags are amongst one of the most common types of packaging. They can be manufactured in a variety of sizes and colours that cater to the buyer’s needs making them perfect for online businesses to distribute their goods in. In addition, its lightweight nature assists in minimising postal cost.

Grey mailbags are amongst the cheapest forms of polythene bags due to its inexpensive nature and still provides are very sufficient form of packaging solution.

Its material composition are as follows:

Material: Low-Density Polyethylene (LDPE)

Material Composition: 30% Rare, 70% Recycled


In comparison, coloured mailbags can provide online businesses with an aesthetically pleasing glossy finish, in which grey mailbags cannot. In particular with white, green and red mail bags. 

Coloured mailbags material composition differs to grey, with it being:

Material: Low-Density Polyethylene (LDPE)

Material Composition: 100% Virgin/Rare


Our mailing bags are produced using co-extrusion technology, compressing 3 layers of polythene film into one (Click to find out more about the manufacture process). This makes the bags very robust, opaque and durable. 

Our mailing bags are also designed to be 100% moisture resistant in addition to being puncture and tear proof, making them able to withstand rough handling. With this, you can be assured your product will not be damaged due to bad weather and such.

Furthermore, once the adhesive strip is peeled and sealed, the bag is permanently closed and concealed; requiring the bag to be ripped open in order to attain the good(s) inside.

This adds the additional security when dispatching goods to consumers, making it tamper evident and provides the highest confidentiality during transits.

Click here to find out how to determine a good quality mailbag.

To see what sizes and colours we currently stock, please click here.

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1 comment

Bernadine Dalley on 2023,03,30

Hello admin, You always provide practical solutions and recommendations.

Kun Feng
Kun Feng is the foremost sustainable packaging expert who possesses the fundamental eco-knowledge and passion necessary to drive new levels of eCommerce growth without compromising people, the planet, or the economy. 

As the co-founder and managing director of SR Mailing, He has successfully helped over 9,000 eCommerce businesses transform into sustainable suppliers and takes pride in being able to offer eco-friendly packaging solutions that bolster eCommerce reputation and scalability, all while supporting the bigger picture along the way.

Feel free to contact with Kun on Linkedin or Facebook
Kun Feng

Managing Director