Home > Wiring Accessories > Cable Protection/Containment > M-Series – Polyester Braided Sleeving

Polyester Braided Sleeving

Designed for thermal insulation and mechanical protection, our polyester braided sleeving (aka cable sock) offers durable abrasion resistance in a wide range of commercial and industrial applications.

The special braid characteristics allow for the expansion of its internal diameter, whilst contracting its length, allowing easy assembly of cable bundling and the general protection of electrical conductors and other components.

Material: Polyester (PET)
Temperature Range: -50°C to + 150°C
Melting Point: 240°C +/- 10°C
Colour: Black (as standard), other colours available include:
Blue, Green, Grey, Red, White, Yellow
Other Information: Flame Retardant
Zero Halogen
LFH (Low Fire Hazard)
Product Code Nominal Diameter Minimum Size Range Maximum Size Range Reel Length
M03B 3.0mm 1.0mm 6.0mm 200m
M04B 4.0mm 2.0mm 7.0mm 200m
M05B 5.0mm 2.5mm 8.0mm 100m
M06B 6.0mm 3.0mm 9.0mm 100m
M08B 8.0mm 5.0mm 16.0mm 100m
M10B 10.0mm 7.0mm 19.0mm 100m
M12B 12.0mm 8.0mm 24.0mm 50m
M15B 15.0mm 10.0mm 27.0mm 50m
M20B 20.0mm 14.0mm 30.0mm 50m
M25B 25.0mm 18.0mm 35.0mm 25m
M30B 30.0mm 20.0mm 50.0mm 25m
M40B 40.0mm 30.0mm 60.0mm 25m
M50B 3.0mm 40.0mm 80.0mm 25m


Whilst polyester braided sleeving isn’t strictly speaking ‘necessary’, we believe it shouldn’t just be seen as an optional extra – especially if you want to keep your wires organised and protected.

For cables installed in particularly harsh areas, outdoor cable sleeving is a must.

It offers excellent protection against various environmental factors – including resistance to chemicals and solvents, as well as UV and abrasion resistance – making it ideal for outdoor applications.

Our flexible, lightweight cable sleeves here at Flex-It can expand up to one and a half times more than their original dimensions – which accommodates multiple different cables at one time.

What’s more, they’re super quick and simple to install, and thanks to the open weave construction, they offer excellent heat dissipation properties too.

Installing a cable sleeve is an incredibly simple DIY-type task, and because all of our cable sleeves are cut to length – the job is made even easier.

There’s no need to take measurements or tedious cutting processes involved. Simply insert your wires – holding one side of the sleeving down with one hand – and push it together with the other, releasing the grip of your first hand, and repeating these steps until your cables are completely covered.

Need further guidance? We’re here for you!

We’re always more than happy to share our expertise, so be sure to give us a call or send us an email, and we’ll be in touch as soon as we can.

Purchasing our polyester cable sleeves is easy!

Once you’ve determined the best size for your project (we can assist you if needs be), make a note of the product code (or codes), and either give us a call or hit the ‘enquire now’ button on the right of your screen to send a message to our team.

Please note, we cannot accept responsibility for incorrectly ordered goods, so it’s important that you triple-check that you’ve provided us with the correct codes.

If you place your order by 2:30pm (Monday-Friday), it’ll be eligible for same-day dispatch – subject to availability – and will be delivered directly to your door on the next working day. Convenient, right?

Payments are authorised by Worldpay, and we accept all major debit/credit cards.

If you have any questions or concerns regarding placing your order, please don’t hesitate to contact the team.

Cable sleeving is just one of the ways you can protect and organise your wires.

They’re mostly used in commercial and industrial cable management systems, and they’re available in a variety of materials – including PVC and braided polyester.

The appropriate cable sleeve will keep your wires safe from abrasion and all sorts of other physical impacts – which is critical in a wide variety of applications.

Here at Flex-It, we supply a variety of different polyester expandable braided cable sleeving options – that are perfect for any commercial or industrial wiring project, and even domestic cable organisation jobs too!

To find out more about our M-Series, be sure to get in touch with our experts today!

Call 01530 812 195 to chat with us directly or email us at sales@flex-it.co.uk, and we’ll respond to your enquiry as soon as we can.

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