The Fourth Element Arctic X Socks complete the Arctic X thermal layering system for cold-water drysuit diving. Built from recycled materials with a dual-layer construction, they deliver warmth at the feet without adding bulk inside a drysuit boot. The design keeps your feet warm, dry, and comfortable throughout the dive and between dives.
The inner layer is a soft fleece that retains heat directly against the foot. The outer layer carries a DWR (Durable Water Repellent) coating, which causes water to bead and roll off the fabric surface rather than soaking in. This keeps the socks performing between dives and during surface intervals. The two layers can be separated after diving to speed up drying time, which is particularly useful on multi-day dive trips or liveaboards where gear needs to be ready again quickly.
The 4-way stretch fabric moves with the foot in all directions, giving a snug fit without restricting movement or circulation. Low-bulk construction means the socks sit comfortably inside a drysuit boot without creating pressure points or reducing blood flow to the feet.
Subtle reflective prints add visibility in low-light conditions on the dive boat or shore.
Fourth Element is a UK-based brand producing technical dive clothing used by divers worldwide. The Arctic X Socks are part of the Arctic X range, an extreme-conditions undergarment system designed for layering in all conditions. They are designed to be worn as part of the Arctic X system, alongside the Arctic X One Piece or the Arctic X Jacket and Leggings combination, providing dedicated foot warmth that a one-piece or leggings alone cannot provide inside a drysuit boot.
All materials are recycled. The main fabric carries Oeko-Tex 100 and Bluesign certification. The lining carries GRS (Global Recycled Standard), Oeko-Tex 100, and Bluesign certification. Packaging is plastic-free. The socks are machine washable.
The Arctic X Socks weigh 0.10kg and are available in sizes XS to XXL in black.
For divers asking whether dedicated thermal socks are necessary with a drysuit: drysuit boots vary in their insulation, and in cold water the feet are one of the first areas to lose warmth. A dedicated thermal sock worn inside the drysuit boot adds a targeted layer of insulation at the foot without adding significant bulk. The Arctic X Socks are built specifically for this purpose.