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Fourth Element dive gear wellington

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Fourth Element’s thermal protection has been tested in the World’s most extreme diving locations from the sub-zero waters of the Antarctic to the tropical temperatures of the Maldives and is used on expeditions where divers have never ventured before. The Fourth Element drysuit range includes the Arctic undersuit which is the choice of professional and recreational drysuit divers worldwide and the innovative biomapped HALO 3D.


wellington drysuits fourth element hydra

Fouth Element HYDRA

Designed with cold water adventures in mind, the Hydra Drysuit is made from High Density Neoprene compressed from 7mm to 4mm, providing warmth whilst maintaining freedom of movement. Fitted with high-end Apollo Bio-Dry Valves, YKK AQUASEAL® dry plastic zipper and the Hydpro Smooth Pro low pressure hose, the slimline cut of the suit means easier air management and all round supreme performance.

An all round good quality Neoprene drysuit with simplicity and functionality at a great price.


Fouth Element ARGONAUT 2.0

Fourth Elements premium Trilamitate Drysuit is made using the award winning BIOMAP® system to create a bespoke pattern unique to the diver.

At the heart of the pattern development was the quest for improved mobility, stronger construction, greater streamlining, easier gas management, lighter weight and easier donning and doffing, but most importantly, the introduction of improved men’s and women’s patterns that fit beautifully.

This system, coupled with our online ordering platform allows complete control over suit design and specification. You can customise your wrist seals, neck seals, dump/inflate valves, boot type, pockets and P-valves to tailor the suit to your needs.

Fourth Element Argonaut 2.0 drysuit wellington

Wetsuit Thermals

Wellington Scuba Diving-Fourth Element Thermocline Top


The Thermocline neutrally buoyant system represents an evolution in thermal protection, using state of the art materials to maximise performance without compromising on comfort. The Thermocline neutrally buoyant wetsuit system comprises the long sleeved top and gives the equivalent protection to a 3mm wetsuit – but weighing less than 1kg (2.2 lbs). Thermocline also provides a real solution for people who suffer from neoprene allergies by eliminating contact between the skin and the wetsuit. Accessory: Fin socks

drysuit Thermal Layers

Fourth Element  HALO 3D

The HALO 3D has body mapped insulation, strategically placed to enhance protection when in a horizontal trim. Designed for use underneath membrane and trilaminate suits, the HALO 3D is the perfect complement to our current range of drysuit thermal protection. In a layering combination with Xerotherm, HALO 3D is suitable for the harshest diving conditions on the planet. Accessory: Arctic socks

Wellington Scuba Diving-Fourth Element Halo 3D Undersuit
Wellington Scuba Diving-Fourth Element Arctic Thermal Top

Fourth Element ARCTIC

The Arctic’s two layers of high insulation, low bulk fabric, ensure exceptional levels of thermal protection. Constructed with comfort and utility in mind, the minimalist design provides outstanding performance under closer fitting neoprene drysuits. In a layering system, the Arctic is also suited for use underneath membrane and trilaminate suits. Accessory: Arctic socks.


The ARCTIC EXPEDITION brings knowledge of performance fabrics and biomapped design together to create a new undersuit in the EXPEDITION SERIES. Using strategically placed additional layers of high density fleece, wind and waterproof fabrics to protect critical areas of the body that experience greater exposure during the dive.  The Biomapping technology maximises thermal protection whilst minimising bulk, allowing greater freedom of movement and comfort throughout the dive.

fourth element XEROTHERM

The Xerotherm is the ultimate Fourth Element base layer undersuit for drysuits. Made using Polartec® Powerstretch® which was originally developed for NASA, the Xerotherm traps a layer of air – a much better insulator than water – next to the skin, keeping the wearer drier and more comfortable.The unisex range is designed to be worn under another undersuit or on its own under a neoprene drysuit and provides astonishing warmth without contributing to bulk or buoyancy. Accessory: Arctic socks

fourth Element X-CORE

The perfect addition to a diver’s thermal protection – get more warmth without significant bulking.
The X-core vest is described as the prefered alternative to electrically heated vests.
Both are worn as a base layer under any drysuit undergarments such as the HALO, Expedition or Arctic. There are no sleeves to bulk up around the arms and constrict movement. Accessory: Arctic socks.

Wellington Scuba Diving-Fourth Element Xerotherm Top


This exciting new range of diving thermals are made with ECONYL® yarn which is a modern material made entirely of discarded “Ghost Nets” and other recyclable waste.  The new technology is part of a push for and increased awareness around the need to put more emphasis on preserving and protecting our natural marine environment.

The result is a high quality new Thermocline range with improvements in comfort and style.

Originally, fourth element OceanPositive products were conceived as a result of recycled ghost nets and other discarded waste – turned into ECONYL® yarn to use in our swimwear and rashguards. We believe, looking to the future, that the issues that surround the destruction of our seas go far beyond just abandoned fishing nets. Being ‘OceanPositive’ spans from not just what we do in the ocean but also what we do in our everyday lives.

Approximately 1.4 billion pounds of rubbish per year enters our seas. Dumped into our oceans daily, this threatens marine life, pollutes beaches and affects local tourism industries. In several parts of the world including the Gulf of Mexico and the Baltic Sea, depletion of oxygen in the water has created enormous dead zones. Imagine if below the water there was no more coral reef to explore, unique plants are dying out, wildlife is scarce and some cases, becoming extinct.


For scuba divers, snorkellers and many other water sport enthusiasts, the ocean is a place of beauty and we must fight to help it survive the impact of human activity. At fourth element we are taking small steps everyday to not only improve our products but also to consider the environmental impact of everything that we manufacture.

Working with organisations such as World Animal Protection, Global Ghost Gear Initiative (GGGI) and Cornwall Seal Group Research Trust in supporting Fathoms Free, our enthusiastic team of wildlife lovers and keen divers regularly help with activities such as beach cleans and retrieving ghost fishing nets.