Fourth Element Xerotherm Women's Top Medium

The Ultimate Baselayer for a Drysuit
The Xerotherm Long Sleeve Top is the ultimate thermal protection for women divers. Made with Polartec Powerstretch, originally developed for NASA, this thermal diving top traps a layer of air next to the skin, providing superior insulation compared to water. It keeps divers drier and more comfortable, whether worn under another undersuit or on its own beneath a neoprene drysuit.

Superior Moisture Wicking
The Xerotherm top features a unique knit fabric that produces the fastest wicking effect of any product in the Fourth Element range. Moisture is drawn out through fine fibres and spreads over the outer surface, maintaining a thin air layer next to the skin. This high-performance wicking is so effective that some divers report not noticing minor suit leaks until after their dive.

Tested and Approved by Professionals
The Xerotherm top has been tested in extreme conditions by professionals. World-renowned underwater filmmaker Doug Allan praised its performance in -2 degree (29F) water inside the Arctic Circle while filming for the BBC's The Blue Planet. Additionally, this thermal undergarment is specified by the FBI Dive Teams, Norwegian Navy, and British Police Diving Units for its reliability and effectiveness.

Designed for Maximum Comfort
With flat seams and a long body to prevent separation between the top and leggings, the women's top is the ideal next-to-skin layer under a drysuit. Thumb loops keep the sleeves in place while donning the drysuit and can be easily removed before diving. This thermal protection for diving is lightweight, low bulk, and buoyant, making it perfect for various dive conditions.

Technical Details and Practical Tips
Getting your gear right can make or break a dive! Fourth Element provide insights on baselayers, undersuits, and what to wear for specific dive conditions, along with helpful hints and tips to enhance your diving experience.