Fourth Element Xerotherm

Fourth Element Xerotherm – The Ultimate Baselayer for Drysuit Diving

When you’re planning a dive in cold water, staying warm and dry isn’t just about comfort – it’s about safety. The Fourth Element Xerotherm range is designed for divers who want reliable thermal protection without compromise. If you’ve ever felt the chill creeping in during a dive, you know how quickly it can ruin the experience. That’s where Xerotherm steps in.

The Problem

Cold water diving can be challenging. Even the best drysuits can’t prevent heat loss if your base layer isn’t up to the task. Moisture build-up and poor insulation lead to discomfort, shorter dives, and increased risk of hypothermia.

The Solution

The Xerotherm Fourth Element collection uses advanced Polartec® Powerstretch® fabric, originally developed for NASA. This innovative material traps a layer of air next to your skin – a far better insulator than water – keeping you warm and dry throughout your dive. The knit structure creates the fastest wicking effect in the Fourth Element range, drawing moisture away and spreading it across the outer surface for rapid evaporation.

Whether worn under another undersuit or on its own beneath a neoprene drysuit, Xerotherm delivers exceptional thermal performance. Divers have even reported staying comfortable during minor suit leaks without noticing until after the dive.

Why Divers Trust Xerotherm

World-renowned underwater filmmaker Doug Allan tested Xerotherm in -2°C Arctic waters while filming for the BBC’s Blue Planet. His verdict? “The performance is superb.” That’s the confidence you need when diving in extreme conditions.

Explore the Range

From tops and leggings to socks and gloves, the Fourth Element Xerotherm range offers everything you need for complete thermal protection. Shop our best-selling sets and accessories today.

Discover more Fourth Element gear
Pair with Fourth Element drysuit undersuits
Explore the Fourth Element Arctic Undersuit Range for ultimate warmth
Complete your kit with Fourth Element diving masks

FAQs About Fourth Element Xerotherm

What is Fourth Element Xerotherm made of?

Xerotherm uses Polartec® Powerstretch® fabric, designed for maximum insulation and moisture management.

Can I wear Xerotherm under any drysuit?
Yes. It works perfectly under neoprene drysuits and can be layered beneath other undersuits for extra warmth.

Is Xerotherm suitable for extreme cold-water diving?
Absolutely. It’s been tested in Arctic conditions and proven to deliver exceptional thermal performance.

Does Xerotherm dry quickly?
Yes. Its fast-wicking design ensures moisture is drawn away from the skin and evaporates rapidly.