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Fourth Element

A brand that is set out to design high quality clothing with a simple, diving orientated style. Fourth element’s technical range is based around the principles of performance, innovation and function.

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Our experts at work

We asked our experts what they think about the Fourth Element Scuba Dive Equipment.

This is how they rate the quality and standard of Fourth Element products.


Summer Worsley

PADI Instructor & Writer
Summer has been teaching scuba for the last 10 years.

Torben Lonne

Editor of
Torben is a dive nut, with a passion for dive gear.

Fourth Element has always focused its efforts on supplying divers with the thermal equipment they need to stay underwater for longer. From drysuits and wetsuits to socks and hoods, the company designs the most practical and stylish looking underwater products. On land, its line of trendy t-shirts, hoodies, jackets, and shorts helps divers everywhere stay warm too.

By incorporating the most technically advanced fabrics available, Fourth Element’s reputation for producing top of the range thermal dive equipment is unsurpassed. Its success has led to it becoming the trusted supplier of high-performance garments to the military, emergency services, maritime agencies, and commercial offshore personnel of countries throughout the world.

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Fourth Element Scuba Dive Equipment

Fourth Element Drysuits

Designed to be used by recreational and professional divers, Fourth Element drysuits are made to the highest standards to minimize the risk of leaks and improve the experience of diving.

The flagship drysuit has to be the Argonaut 2.0. Designed for greater mobility and to be lighter in weight, more streamlined, and constructed stronger, these drysuits deliver in every category. There are three models made from different materials:

  • Stealth – nylon trilaminate
  • Flex – polyester trilaminate
  • Hybrid – nylon/polyester trilaminate

But the outstanding feature of the Argonaut 2.0 is that these drysuits can all be fully customized. Biomap technology allows divers to purchase a suit that’s the perfect fit, no matter their body shape. Simply place an order, receive a Biomap kit, follow the instructions and you’ll receive the most comfortable drysuit you’ve ever purchased. Other tailored options include a choice of wrist and neck seals, type of sock or boot, a dry glove system, and p-valves.

For those who prefer neoprene drysuits, there’s the Hydra, a close-fitting and streamlined suit made using high-density neoprene (HDN). The HDN is compressed from 7 mm to 4 mm providing warmth while still allowing for full freedom of movement.

A hardwearing fabric is laminated on the outside of the HDN, making the Hydra abrasion-resistant, and a smoother lining on the inside helps with donning and increases comfort. Each seam is fused, blindstitched, and taped on the inside, while external plasma seams prevent tearing and damage from equipment.

Fourth Element Wetsuits

Fourth Element’s range of wetsuits is all about innovation and great performance. The company claim that the Proteus II is the warmest 5 mm wetsuit on the market thanks to its Hydrolock neck seal that minimizes water intake and a Hexcore thermal lining that maximizes warmth. The Proteus II is available in men’s and women’s cut and there is also a 3 mm version.

Designed for liveaboard diving, the Xenos uses stretch neoprene making it easy and quick to get on and off. Not only does it look great, but its Thermoflex lining and Thermocore chest pad are quick-drying for those doing multiple dives per day. A double smooth-skin zip flap keeps water entry through the back zipper to a minimum. The Xenos is available in men’s and women’s 3 and 5 mm and comes as a shortie or full-suit.

Part of Fourth Element’s OceanPositive collection, Thermocline is a neutrally buoyant wetsuit system made from recycled ghost fishing nets. The material is lightweight, machine washable, and equivalent to 2 mm wetsuits, all designed to be worn independently or beneath a wetsuit or drysuit. For divers allergic to neoprene, Thermocline is an ideal solution. The range includes jackets, full-suits, shorties, long and short-sleeved tops, leggings, shorts, socks, and hooded tops. There are even long-sleeved women’s swimsuits, ideal for warm-water diving and freediving.


Fourth Element Undersuits

Fourth Element set out to produce undersuits and baselayers that would perform in the most extreme conditions on the planet. Its collection features a wide range of low-bulk clothing that experienced divers, and even the FBI’s dive teams, rely on to keep them warm. Each item is cut for either a man or woman and is fast wicking and machine-washable.

The Halo3D is the warmest of the collection. This full suit is equivalent to 14oz (400g) Thinsulate but contoured to the body to reduce bulk. Divers can take advantage of Biomap technology and have the Halo3D customized for the perfect fit. Strategically placed compression-resistant Spacetek material has been used in key exposure areas to provide maximum insulation when in a horizontal position.

Fourth Element’s Arctic range is the company’s most popular underwear range and is available as a one-piece, two-piece, or separate tops and leggings, allowing you to mix and match. Although designed for use beneath neoprene drysuits, the Arctic is loose enough to make it extremely versatile and can be paired with the J2 baselayer or Xerotherm for longer dives and colder waters.

Fourth Element Footwear & Accessories

Whether you’re going for a drysuit with thermals or a wetsuit, no diving outfit is complete without the accessories. Fourth Element offers a range of socks, boots, gloves, and hoods to keep divers extra warm.


To top off the Arctic undersuit, Fourth Element has its Arctic socks. A two-layer construction is low-bulk and provides thermal protection. The inner lining can be pulled out from the outer layer to speed up drying times.

Hotfoot drysuit socks do exactly what they say they will. High-density fleece material combined with a water-resistant outer creates a dry, comfortable, and warm microclimate to keep your feet toasty.

Thermocline fin socks are part of the OceanPositive range and designed to be used as a lining for full-foot fins and neoprene boots to reduce chaffing. Kids and young adults will find these fin socks useful as they can be used to help with attaining a better fit with fins that are slightly too large.


Amphibian boots are ideal for shore diving. They support and protect the feet with a stable footbed and a durable outsole designed to give maximum grip and stability when walking over slippery rocks. Alternatively, the Rock Hoppers are a lightweight shoe that are great for clambering. They can also be used with open-heel fins for extra reinforcement around the heel area.

The Pelagic boot is geared towards travelers and boat divers. More lightweight, these boots are flexible and comfortable when finning or climbing a ladder.


Fourth Element’s glove liners and Xerotherm gloves are designed to maximize warmth beneath dry gloves while still allowing a full range of movement. 3 mm gloves give the wearer maximum dexterity and are ideal for photographers and videographers.

5 mm gloves still offer dexterity but combine it with warmth using a Thermoflex material. But if ice diving is your thing, there are 7 mm mitts. A minimalist design makes them easy to put on, even when your hands are cold and wet.


Fourth Element’s hoods have a simple, minimalist design that gives a good fit for great performance and comfort. Neoprene hoods are available in 3, 5, and 7 mm version and feature smooth linings to make donning easy. Micro holes in the top of the hood vent air while preventing water ingress.

For diving in temperate and warm waters, Fourth Element has the Thermocline hood which is the lightweight alternative to neoprene.

Fourth Element History & Company

In 1999, while enjoying a post-diving beer in the Egyptian resort of Sharm El Sheikh, British schoolteachers Jim Standing and Paul Strike came up with an idea. They were trying to understand why adventure sports enthusiasts had gear specially designed to keep them warm while divers still had to tough it out in cold conditions.

Fourth Element was born out of the desire to design high-quality clothing orientated towards divers. Using the latest in fabric technology, the company has revolutionized thermal protection around the principles of innovation, performance, and function.

Over the years, Fourth Element’s collection has expanded to include swimwear, luggage, towels, and a full range of fashion clothing. And, the company worked hard to make its practices and products as environmentally friendly as possible. By turning recycled ghost nets and discarded waste into ECONYL yarn, the company produced its range of OceanPositive products. From recycled swimwear and compostable packaging to supporting environmental charities, Fourth Element believes in preserving the oceans for generations to come.

More than 20 years after it began, Fourth Element continues to wow the diving community with its range of stylish yet practical exposure suits and accessories, all designed with one thing in mind.o keep us all under water for longer — whatever Mother Nature throws at you.

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