Fourth Element

Fourth Element Xerotherm Leggings

The Fourth Element Xerotherm Leggings are premium Polartec® thermal baselayer bottoms designed to deliver outstanding warmth and moisture management beneath a drysuit. Constructed from genuine Polartec® Power Stretch®, they trap a thin insulating layer of air while rapidly moving moisture away from the skin to help maintain warmth throughout every dive.

Perfect for recreational, technical and CCR diving throughout Melbourne, Victoria and other cold-water environments across Australia, the Xerotherm Leggings provide an ideal foundation for any drysuit layering system. They can be worn beneath thermal undersuits such as the Arctic X or HALO A°R, or on their own beneath neoprene drysuits for lighter thermal protection.

Polartec® Power Stretch® Designed for Layering Professional Proven
Fourth Element Xerotherm Leggings

Choose Your Size

RRP
AUD $250
Our Price
AUD $214
You Save
AUD $36 (14%)
Most sizes are available to order. If your selected size is temporarily unavailable from Fourth Element, we'll confirm the latest delivery estimate before processing your order. Australia-wide shipping available.
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Product Highlights

High-Performance Baselayer Bottoms for Cold-Water Diving

The Xerotherm Leggings complete the lower half of your drysuit layering system. Built with genuine Polartec® Power Stretch®, they efficiently transport moisture away from the skin while maintaining a thin insulating air layer. Their lightweight construction improves warmth without increasing bulk, making them equally suited to recreational, technical and professional diving.

A high waistband ensures excellent overlap with the Xerotherm Long Sleeve Top, while the unique foot pocket design keeps the leggings correctly positioned inside your drysuit throughout the dive.

Key Features

Key Features

Polartec® Power Stretch®

Premium technical fabric providing exceptional moisture management, stretch and next-to-skin comfort throughout every dive.

Fast Moisture Wicking

Rapidly transports moisture away from the skin to maintain a dry insulating air layer and improve overall thermal performance.

High Waist Design

A high waistband provides excellent overlap with the Xerotherm Long Sleeve Top, helping eliminate gaps and maintain consistent insulation.

Secure Foot Pocket

The unique foot pocket design helps prevent the leggings from riding up while putting on your drysuit, ensuring a comfortable fit throughout the dive.

Technical Details

Technical Specifications

The Fourth Element Xerotherm Leggings are designed as high-performance thermal baselayer bottoms for drysuit diving. Constructed from Polartec® Power Stretch®, they combine rapid moisture management with lightweight insulation, helping keep the lower body warm, dry and comfortable during cold-water dives.

Product
Fourth Element Xerotherm Leggings
Layer Type
Next-to-skin thermal baselayer bottoms
Best Use
Drysuit diving and cold-water layering systems
Material
57% Polyester / 33% Nylon / 10% Elastane (Polartec® Power Stretch®)
Fit
Slim fit designed to sit close to the skin
Lightweight insulation with outstanding moisture management
Thermal Performance
Key Features
High waistband, flatlock seams and integrated foot pocket design
Care
Machine wash cold. Line dry. Do not tumble dry.
Ideal Pairing
Fourth Element Xerotherm Long Sleeve Top, Arctic and HALO A°R undersuits
Available Sizes
Men's and Women's standard sizes
Included

What's Included

  • Fourth Element Xerotherm Leggings
Size Guide

Need Help Choosing Your Size?

Use the size guide below as a reference before ordering. If you are between sizes or plan to wear additional base layers, contact us and we can help recommend the most suitable fit.

Men’s Size Guide

Fourth Element Xerotherm Leggings men’s size guide

Women’s Size Guide

Fourth Element Xerotherm Leggings women’s size guide

Why Choose the Fourth Element Xerotherm Leggings?

The Fourth Element Xerotherm Leggings are designed to provide both thermal insulation and outstanding moisture management beneath a drysuit. Unlike standard baselayers that simply move perspiration away from the skin, the Polartec® Power Stretch® fabric also traps a thin insulating layer of air, helping divers stay warmer throughout extended cold-water dives.

The slim-fitting design reduces bulk while allowing unrestricted movement beneath your drysuit, making the Xerotherm Leggings an excellent choice for recreational, technical and CCR diving where comfort and thermal efficiency are equally important.

Ideal for Melbourne and Australian Cold-Water Diving

Diving throughout Melbourne, Port Phillip Bay, Victoria and Tasmania often requires a flexible layering system that can adapt to changing water temperatures. The Xerotherm Leggings provide dependable thermal performance during shore dives, boat dives and technical dives while remaining lightweight enough for year-round use.

Xerotherm vs J2: Which Baselayer Should You Choose?

The J2 Base Layer is designed primarily to maximise moisture management as the first layer against your skin. The Xerotherm builds on this by adding meaningful thermal insulation using Polartec® Power Stretch®, making it the ideal choice for divers seeking additional warmth without moving to a full thermal undersuit.

Build Your Complete Fourth Element Layering System

The Xerotherm Leggings pair perfectly with the Xerotherm Long Sleeve Top to create a complete thermal baselayer system. For colder water, they can be layered beneath the Arctic X or HALO A°R undersuits, allowing divers to build a modular drysuit layering system suited to different seasons and dive profiles.

Why Buy from Extreme Watersport?

Extreme Watersport is an authorised Fourth Element dealer in Australia, providing genuine thermal systems together with expert advice from experienced cold-water divers. Whether you're comparing the Xerotherm with the J2, Arctic X or HALO A°R, we can help you choose the ideal layering system for Melbourne, Victorian and Australian diving conditions.

FAQ

Fourth Element Xerotherm Leggings FAQ

Can the Xerotherm Leggings be worn on their own?

Yes. The Xerotherm Leggings can be worn on their own beneath a neoprene drysuit or as part of a lightweight thermal system. For colder conditions, they are designed to be paired with another undersuit such as the Fourth Element Arctic or HALO A°R.

Are the Xerotherm Leggings suitable for trilaminate drysuits?

Yes. The Xerotherm Leggings are specifically designed as a next-to-skin baselayer for trilaminate drysuits, helping manage moisture while improving the performance of your outer thermal undersuit.

What makes the Xerotherm Leggings different from ordinary thermal leggings?

The Xerotherm Leggings are constructed from genuine Polartec® Power Stretch® fabric, engineered to wick moisture away from the skin while maintaining a thin insulating layer of air. This delivers superior comfort and thermal performance compared with standard thermal clothing.

Can I wear the Xerotherm Leggings with another undersuit?

Absolutely. The Xerotherm Leggings are designed to work beneath undersuits such as the Fourth Element Arctic and HALO A°R, helping improve moisture management and overall warmth during cold-water dives.

How should the Xerotherm Leggings fit?

The Xerotherm Leggings should fit close to the body without restricting movement. Their slim fit allows efficient moisture transfer while remaining comfortable beneath your drysuit and thermal undersuit.

Are the Xerotherm Leggings machine washable?

Yes. Machine wash cold and line dry. Avoid tumble drying to maximise the lifespan and performance of the Polartec® Power Stretch® fabric.

Need Help?

Need Help Choosing the Right Baselayer?

The right baselayer is the foundation of every effective drysuit layering system. If you're unsure whether the Xerotherm Leggings are the right choice, or you'd like advice on combining them with the Xerotherm Long Sleeve Top, Arctic or HALO A°R, our team is happy to help you build the ideal thermal system for your diving.

Contact Us for Advice