- Outstanding thermal performance
- Lightweight low bulk and buoyancy
- Extremely fast wicking
- Hardwearing
- Machine washable
- Performs when wet




Fourth Element Xerotherm Top - Mens
Fourth Element Xerotherm Top is the ideal next-to-skin layer under a drysuit. With flat seams and a long body to ensure that no separation between top and leggings develops. Thumb loops keep the sleeves in place whilst donning the drysuit.
Size
Dispatched in 1 to 2 days
With flat seams and a long body to ensure that no separation between top and leggings develops, the Fourth Element Xerotherm 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.
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.
We aim to dispatch items within the Dispatched Time indicated but will inform you of approximate delivery times should any item on your order be out of stock or on supplier backorder due to manufacturing and/or transport delays caused by global or regional shortages.
Please contact us before any return with your order number and date details. Receive our Returns Authorisation Form and instructions and enclose them with your return to expedite a refund.
Email us at sales@dirdirect.com or call us on +44(0)1305 824 555
Note that all returned items are shipped at the customer's own risk and remain the customer's property until received by Underwater Explorers, so please ensure they are packaged well and use reliable postal services with tracking facilities. The goods will be inspected on arrival.
Return postages are at your own cost and our outbound shipping costs (if items are sold with integrated basic shipping charges) may be deducted from any UK mainland refund unless linked to a fault/defect claim.
Please contact us with your order number and name before sending any returns to:
Underwater Explorers – Returns
Unit 1, Maritime Business Centre
Mereside, Portland
Dorset, DT5 1FD
United Kingdom