Metalux® Undersuit (100g, 200g, 300g)


Metalux® is a unique undersuit material. Northern Diver designed Metalux® to be one of the most lightweight, high-performance and high spec, insulating materials available. We've designed our Metalux® range to be suitable for use in conjunction with all our neoprene and membrane drysuits. Why does Metalux® have such an enviable reputation? We're proud to say it's one of the most effective insulative materials available. We've developed these undersuits to insulate and reflect a diver's own b...

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  • Lightweight & durable
  • Fleece-lined
  • Quick-drying design
  • Bacteria and fungus resistant
  • Two-way vertical front entry YKK® zip
  • Zipped chest pocket
  • Pockets on hips
  • Elastic thumb stirrups (200g & 300g)
  • Elastic foot stirrups
  • Arctic Metalux® both conform to H&S requirements in Annex II of the 89/686/EEC PPE Directive 89/686/EEC
  • Supplied with a black, mesh-panelled, drawstring carry bag (complete with Northern Diver and Metalux® logos)
  • Tog rating of between 4.2 and 4.4 (depending on style chosen)

Delivery, Returns & Instore Collection

When will I receive my order?

International Delivery Times

Monday – Friday 3 – 5 Working Days

UK Mainland Delivery Times

Monday – Friday before 2pm Next Working Day
Monday – Friday after 2pm 2 Working Days
Saturday & Sunday 2 Working Days

UK Extended Areas Delivery Times

Monday – Sunday 3 – 5 Working Days

Please note delivery times may be extended during busy periods.

EU Areas

Please note that due to changes by HMRC, orders being shipped to EU countries will not be shipped on the same day as they are invoiced. EU Orders will now be shipped on the next working day. This only applies to E.U. orders. Domestic and Worldwide shipments remain the same.

Collect In Store?

When you go to the online checkout, you can opt to collect your items in store. We'll let you know when your order is ready for you to collect. Your order will normally be ready to collect the next working day.

Returns, refunds or exchanges?

You can return any item within 28 days of receipt for a refund, provided the item is unused, in its original packaging and in 'as new' condition.

Items will be refunded in full (less postage) if received within 28 days from the date of despatch.


We aim to deal with all returns and exchanges on the day they arrive, however please allow longer during peak periods.

You can return the item(s) by dropping them off in store or by returning the item(s) by post. We do not insist on a specific courier service for the return, so please use the most economical or appropriate method for returning the item(s).

Northern Diver (Int) Ltd
Appley Lane North
Appley Bridge

If an item becomes faulty after a period of time then please contact customer services (01257 254 444 or prior to returning the item. We will either repair or replace the item at our discretion.

Tell Us What You Think

Customer Reviews

5 out of 5 Stars (6 reviews)

Write a Review

Super Warm Undersuit

By Barry Francis on 12 Jun. 2011

Having used an earlier model of this undersuit to which was great as I was getting a new divemaster suit I thought I would treat myself to a new undersuit and found this to compliment the divemaster suit. I have never been cold whilst diving using this as one thing I dislike is being cold. Great product, I stay nice and warm and very comfortable.

Warm and Toasty

By Anarica Ball on 28 Feb. 2013

My husband bought this undersuit from Craig at Northern Diver at the Dive show in London along with my dry suit and I can say that this suit has not yet let me down once and has always kept me warm and toasty even down at 3 degrees. Easy to clean and very quick to dry.

Works When Wet..!

By David Wheeler, OWI, BSAC Advanced Diver on 30 Mar. 2013

My last dive I peeled off my membrane suit and found the outer skin of my Metalux Arctic soaked, though I had been perfectly warm. At home I thought I'd have to wash off the salt but found the fleece lining to be dry. I guess the outer membrane is water resistant, whatever, it works very well and is the best undersuit I have ever had.

Still unbeatable

By Andrew Duff on 31 Jan. 2019

I bought mine in 2012 and every winter I bring it out of hibernation. Despite a lot of use, it still looks almost new with no sign of wear. Even at 4 degrees, I never feel the cold when using the undersuit in combination with my Divemaster drysuit. It performs superbly even if wet. There are two downsides, however: firstly, it traps a lot of air so I need to carry a lot of lead to compensate; and secondly, I look a total **** when wearing it! Despite that, if you need warmth I can't recommend anything better.

Metalux Undersuit

By Chris Gibbs (via Trustpilot) on 17 Jan. 2022

Easy to use website and really quick delivery, can’t fault the service. The Metalux undersuit is a great bit of kit too.

Unbeatable service

By Scott Emery on 23 Dec. 2022

This order arrived less than 24 hrs after I ordered it. Was not expecting it till the new year as I ordered on Dec 22. Even came with several gifts in the box. Outstanding service. I have not tried the suit yet but I made the order because almost all of the divers I'm working with at the moment have them and say they are invaluable. Thank you so much.


Breathable Fabric Technology

Breathable Fabric Technology

Breathable fabric technology.

Lightweight Fabric Technology

Lightweight Fabric Technology

Lightweight fabric technology.



Microfibre material wicks moisture.

Unisex Sizes

Unisex Sizes

This suit is available in unisex sizes. Look at the documents tab to view our size charts and measuring guide.

YKK® Aquaseal® Zips

YKK® Aquaseal® Zips

YKK® AQUASEAL® zippers are perfect for diving. This zip has been designed to be flexible and smooth, offering optimum protection with a film-coated tape and an innovative zipper element mechanism. Keeping the water out and you dry.


Trade Customers

Northern Diver offers trade accounts to commercial organisations and to those who work in or around water. Please click here to register your details and find out if you qualify. Once your trade account has been confirmed you can view all trade prices and shop easily online when logged into your account. Please note when you are not logged in to your trade account retail prices are shown. If you have any queries please do not hesitate to contact us. Tel: +44 (0) 1257 25 44 44.