The Fourth Element Halo AR provides exceptional thermal protection for your core, allowing you to extend your time in the water and enjoy your dive to the fullest. Designed to be worn under your wetsuit or drysuit, this undersuit uses Argon gas trapped within its fibres to create a remarkably effective insulating layer. Imagine feeling noticeably warmer, even in colder waters, thanks to the Halo AR's advanced thermal technology. Its close-fitting design ensures maximum comfort and freedom of movement, so you won't feel restricted while exploring the underwater world. Whether you're a seasoned diver or just starting out, the Halo AR will enhance your diving experience by keeping you warmer for longer.