Fourth Element Undergarment Collection

About

Designed to deliver comfort, insulation, and performance under drysuits, Fourth Element undergarments are trusted by divers across the globe — from recreational enthusiasts to technical and expedition divers. Whether you're diving in cool UK waters or venturing into the extremes, there's a layering system tailored to suit your needs. The range includes high-performance base layers like the Xerotherm and J2 , mid-layer options such as the X-Core vest , and full thermal protection with the Arctic and Halo AR suits. Each garment is engineered for maximum warmth with minimal bulk, offering excellent moisture management, quick-drying properties, and freedom of movement. With sustainable materials used across much of the range, Fourth Element undergarments combine advanced thermal technology with OceanPositive™ values — keeping you warm while protecting the environments you dive in. Explore the full collection and build your perfect drysuit layering system for reliable performance on every dive.