Metalux® Undersuit (100g, 200g, 300g)




UNDERSUIT THICKNESS: 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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Customer Reviews

5 out of 5 Stars (6 reviews)

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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.


  • 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)


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.