Cold water is no excuse to dive less. The Fourth Element Arctic X is a complete thermal undersuit system built for drysuit divers who take their diving seriously — whether that's year-round UK diving, technical diving, or pushing into genuinely cold water. Every piece in the range is engineered around the same high-performance three-layer fabric: a DWR water-repellent outer shell, insulating mid-layer, and soft fleece lining that traps warmth without the bulk that makes getting into a drysuit a wrestling match.
The Arctic X range covers everything from jacket and leggings for variable conditions through to a full one-piece undersuit for when seamless, gap-free coverage matters most. Add the Arctic X Socks and you've got a head-to-ankle thermal system that's optimised for horizontal trim, built from recycled materials, and certified to Global Recycled Standard (GRS), Oeko-Tex 100 and Bluesign standards. Machine washable, plastic-free packaged, and available in men's and women's cuts across a full size range including short leg options.
When warmth matters, the Arctic X delivers.
