Fourth Element

Fourth Element Xerotherm 3 Piece Bundle | Women’s

£260.00 B Eco-Rating

This is The Honest Diver team’s go-to base layer to wear under their drysuit.

The Fourth Element ladies Xerotherm 3 piece bundle includes the long sleeve top, leggings and socks – we’re even chucking in a free Xerotherm beanie to keep you extra toasty.

You’ll find the Xerotherms super comfy and soft. They’re the perfect base layer for next to your skin.





We don't have this in the stock cupboard right now, but you can still order it!

We'll get it in for you - it'll just take a few days extra for delivery.

If you want an exact ETA, have a chat with one of the team.

The Honest Truth



We all use these to layer up depending on the time of year. In the summer I wear just my Xerotherms with an X-core vest on top.

In the winter, I put them under my Halo undersuit.

Get your mitts on this Fourth Element ladies Xerotherm 3 piece bundle to save some wonga!
What's In The Bundle?

As part of this Fourth Element mens Xerotherm 3 piece bundle you will get:

If you bought these items individually, it would cost £267.00 so you’re saving 30 quid woo!

Key Features

All the items in this Fourth Element ladies Xerotherm 3 piece bundle:

  • Have outstanding thermal performance
  • Are lightweight low bulk and buoyancy
  • Are extremely fast wicking
  • Are hardwearing
  • Can go in the washing machine
  • Perform when wet
Manufacturer's Bumph


The fastest wicking thermal baselayer on the market, tried and tested in some of the most extreme environments on the planet. The whole range (including the socks, top and leggings that are included in this Fourth Element ladies Xerotherm 3 piece bundle) is specified by the FBI and many other professional dive teams.

The ultimate baselayer for use under a drysuit. Made using Polartec® Powerstretch® 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 range is designed to be worn under another undersuit or on its own under a neoprene drysuit.

The knit of the Xerotherm fabric produces the fastest wicking effect of any of the products in the fourth element product range. Moisture is drawn out through the fabric along fine fibres and then spreads out over the outer surface. This maintains a thin layer of air next to the skin. This is so effective in the Xerotherm that some wearers report experiencing minor suit leaks during the dive without even noticing until after the dive.

“The performance is superb”. This was the reaction of Doug Allan, world renowned and award-winning underwater filmmaker and author after testing the Xerotherm in -2 degree (29F) water inside the Arctic Circle in Svalbard, whilst shooting sequences for the BBC production The Blue Planet.

The Xerotherm represents the ultimate in baselayer performance, unrivalled by anything else on the market. Since Doug’s testing, the Xerotherm has been to the top of Everest and down to the Titanic, as well as being specified by the FBI Dive Teams, Norwegian Navy and British Police Diving Unit.


XEROTHERM LONG SLEEVE TOP: With flat seams and a long body to ensure that no separation between top and leggings develops, the top is the ideal next-to-skin layer under a drysuit. Thumb loops keep the sleeves in place whilst donning the drysuit and should be removed from the thumb and pushed back through the wrist seals prior to diving.


XEROTHERM LEGGINGS: These simple, minimalist leggings have been designed for maximum performance. The high waistband ensures good overlap of the top and leggings and unique foot pocket design ensures the leggings do not ride up. Flat seams provide next-to-skin comfort throughout the dive.


XEROTHERM SOCKS: Excellent thermal protection and comfort. Thin enough to be worn under other drysuit socks yet capable enough as thermal protection in their own right, they are comfortable thanks to the flat locked seams and fast wicking fabric.

Meet the Team

Who are we?