Advanced Base Layer Warmth with the Fourth Element Xerotherm Collection
Originally developed for NASA, the Fourth Element Xerotherm Collection offers cutting-edge thermal performance in a lightweight, low-bulk design — perfect as a base layer under any drysuit system. Made with fast-wicking Polartec® Powerstretch® fabric, Xerotherm garments efficiently trap warm air while drawing moisture away from the skin, keeping you dry and comfortable even on extended or repetitive dives.
Renowned for its exceptional warmth-to-weight ratio, the Xerotherm range includes tops, leggings, one-pieces, and socks — all designed with a snug, anatomical fit that works seamlessly under neoprene or membrane drysuits. Ideal for temperate to cold-water diving, these garments are a top choice for both technical and recreational divers.
Whether you're layering for warmth or looking to enhance drysuit comfort, the Fourth Element Xerotherm Collection delivers professional-grade performance trusted by expedition divers, instructors, and explorers worldwide.
