1000g FE Thor Drysuit



Our Thor drysuit is manufactured from a vulcanised polymer created from a mix of high-grade rubber and EPDM.

Vulcanised laminated polymers are carried on a multidirectional 4-way-stretch knitted polyester, which gives excellent strength and durability.

The Thor is suitable for commercial diving applications but is also an excellent option for military and rescue purposes.

The Thor has been thoroughly tested at the Austin Institute in Texas, USA. All Thor drysuits are CE approved and conform to the latest EEC PPE directive regarding drysuits.

Our quality control management conforms to BS EN ISO 9001:2008, ensuring that all Northern Diver products are of the highest quality and manufacturing standards.

Independent tests show that the Thor drysuit is resistant to chemical permeation. Full details are available on request.

Thor drysuits can be manufactured to custom specifications, including fitting items such as reflective overprinting, extra reinforcement and pockets.

All Northern Diver stock suits are fitted with a standard sized neck/wrist seals and boots/socks for that size suit. Please refer to the Suits Size Chart in the documents section to view the sizes fitted.

If the standard sizes of neckwrist and footwear will not fit you, we can alter the suit so that it will. Leave a note for special alteration requirements at check-out stage or email/live chat message us. Please be aware alterations on stock suits may be chargeable.

Thor Options

Thor drysuit neck/wrist seals and boots can be changed. This includes a wide range of options, including lightweight swimming boots, wide-fitting boots for static commercial diver operations and safety boots with steel toe caps and mid-sole foil. Neck yokes, additional pockets, dry glove systems and convenience zips are also available.

Chemical Permeation & Biological Penetration Tests

The majority of divers using Thor drysuits in contaminated water require information regarding the drysuit’s protective qualities to be made available. Thor suits underwent permeation testing under worst case scenario conditions – 100% chemical exposure for the entire length of the test.

Although these test conditions are unlikely in any chemical diving environment, the results demonstrate the protection offered under most normal circumstances.

Permeation Test Results

The permeation values are based on the time it takes for the chemical to permeate the suit material. The permeation test is performed up to 480 minutes. The reports that indicate greater than 480 minutes means that no chemical was detected above 0.1 mg/ min/cm2 for 8 hours’ duration.

Actual Breakthrough vs. Normalised Breakthrough

Actual breakthrough is reported in minutes and occurs when initial breakthrough is detected. Each chemical tested has unique characteristics and minimal detectable limits. For example: if a chemical has a minimum detectable limit of 0.059 mg/ min/cm2, actual breakthrough is reported when challenge chemical concentrations reach 0.059 mg/ min/ cm2 or greater. Normalized breakthrough occurs when challenge chemical breakthrough concentrations reach 0.1 mg/ min/ cm2 or greater (AaSTMm Ff739).

Maximum Minimal Detectable Rates

This indicates the maximum level of chemical detection using the permeation test system. The minimal detectable rate is the lowest rate of permeation that is detectable with the permeation system.

Steady State Permeation

The constant rate of permeation that occurs after breakthrough when the chemical contact is continuous and all forces affecting permeation has reached equilibrium.

When Diving in Polluted, Contaminated or Generally Abnormal Environments

Northern Diver’s Thor drysuit has been developed and tested for use in these conditions and as such should be regarded as an integral component of your diving plans. Diving in contaminated environments has the potential to be extremely dangerous.


After exposure to a contaminated environment, the Thor drysuit must be decontaminated, ensuring that all contaminants have been removed from the drysuit.

Diving in contaminated environments should not be undertaken by those without the highest level of training. All risks should be understood prior to any contaminated environment diving, with all risks carefully planned for and the utmost care taken.



  • Chemical and biological permeation resistant
  • Triple-vulcanised bonded for life seams with reinforced knee & crotch area
  • CE Approved


    Cuff Ring SystemCuff Ring System

    The Cuff Ring System has excellent resistance to acids, alkalis, abrasion, chemicals, cutting oils, petrol and gasoline.

    Excellent option for those interested in replacing seals quickly and easily.

    Attaches directly to the drysuit.


    Custom Tailored Suits & Suit Repairs Custom Tailored Suits & Suit Repairs

    Custom tailoring options are available on stock size drysuits – perfect for people who wish to add other elements such as neck, wrists, pockets, reflective panels and much more. Drysuit repairs are available for all suits – visit the Custom Tailored and Suit Repairs page for more information.


    Dry Glove Ring SystemDry Glove Ring System

    Compatible with our dry glove ring system. Loss of movement or manual dexterity, due to cold hands, can be dangerous during a dive, as well as being uncomfortable for the diver. Maintaining hand warmth and a divers ability to efficiently operate their essential diving equipment, is vital to safe diving and maintaining a high level of dive comfort. Northern Diver is proud to manufacture and continue to innovate our revolutionary concept in dry diving glove systems.

    Elite DivisionElite Division

    Advanced technologically designed drysuits.


    Hood OptionsHood Options

    Option of a Latex or Skin/Skin hood with the Thor drysuit.


    Lead InsolesLead Insoles

    Insoles manufactured from solid lead each insole weighs 2.6kg.


    Neck Dam OptionsNeck Dam Options

    We offer a full range of rubber helmet yokes, available to fit all of the popular demand and free flow helmets such as SL27/37/47, AH3/5, Desco, Deepsea, Genesis and Dräger.


    Thor Boot OptionsThor Boot Options

    Choose from ergonomically designed underwater safety boots which offer chemical and biological penetration protection, plus added impact resistance or standard safety boots. Thor overboots can also be added, all toe cap tested to EN 12568:2010.

    TUV RheinlandTUV Rheinland

    Independent testing & certification of valves.


    Unisex SizesUnisex Sizes

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


    Drysuit Valve Manual

    Membrane Drysuit Manual

    Suit Measuring Guide

    Thor Suits Size Chart

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