Fourth Element Xerotherm Vest - Ladies

The Fourth Element Xerotherm Vest for women provides extra warmth and thermal protection for your body core when layered underneath a Xerotherm or other drysuit undersuit. It does not increase bulk and keeps arms comfortably mobile during the dive.

The Fourth Element Xerotherm Vest is designed to be worn under another drysuit undersuit, or on its own under a neoprene drysuit. It provides astonishing warmth without contributing to bulk or buoyancy.

The Xerotherm is the ultimate base layer for use under a drysuit. 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.

Xerotherm - Fast Wicking Baselayer
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 (a more efficient insulator than water) 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 Centigrade (29°F) water inside the Arctic Circle in Svalbard, whilst shooting sequences for the BBC production The Blue Planet.

The Fourth Element Xerotherm represents the ultimate in base layer 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 Units.

Xerotherm is Machine Washable
Machine wash cold. Line dry. Do not use bleach. Do not iron. Do not tumble dry. Can be dry cleaned. Avoid the use of fabric softeners.

Fourth Element Xerotherm Vest for women Features

• Ultimate Base Layer for Use Under a Dry Suit
• Polartec Power-Stretch: Originally Developed for NASA
• Xerotherm:
  Traps Layer of Air
  Much Better Insulator than Water, Next to Skin
  Keeps Wearer Drier and More Comfortable
• Unisex Range: Designed to be Worn Under Another Under Suit
• Single Layer Under Neoprene Dry Suit:
  Provides Astonishing Warmth
  Won't Contribute to Bulk or Buoyancy
  Rarely Impact on Weight Configuration
  Dramatically Improves Warmth
• Xerotherm Fabric:
  Fastest Wicking Effect of Fourth Element Range
  Moisture is Drawn Out Thru Fabric Along Fine Fibers
  Spreads Out Over the Outer Surface
  Maintains Thin Layer of Air Next to Skin
  More Efficient Insulator than Water
• So Effective, Minor Suit Leaks Not Noticed
• Machine Washable

Fourth Element Women's General Sizing Charts

Fourth Element is changing how they identify women's garment sizes. They've listened to customer feedback and believe this change will make it easier to identify the size you need and improve your experience overall.

Moving to a universal system (XS, S, M, L etc) from a number system (UK12, US10 etc) will ensure that you can find your perfect size whether you are shopping online or purchasing from our dive store.

During the transition period we will sell garments labelled with either old or new sizing. This might lead to you receiving an item labelled with a different size to your order. Don't worry! The measurements match according to the size guide and you will receive your order with the fit that you want.

Use the tables below as a guide to help select which size product best suits your body type.

Fourth Element Women's New Universal Sizing

* Inside Leg Measurements are taken from the crotch to the floor.

Womens Comparison Size Chart

Drop Ship:
This is not a regularly stocked item in our Rye dive shop and is, therefore, a Special Order item. It will be ordered for you from the distributor upon request and typically shipped directly from them to you the same day thus resulting in no delay in delivery. If they are out of stock this item becomes a special international order, typically resulting in a 4-week delay.

As a Special Order item, we are Unable To Accept Returns, please take care when ordering your size on this item.

Note: This item cannot be delivered outside of Australia.