Fourth Element Xenos 3mm Wetsuit – Rapid donning and doffing | Thermoflex lining | Stretch neoprene fit The Fourth Element Xenos 3mm wetsuit is designed for multi dive days like liveaboards, where comfort, speed, and thermal performance matter most. The main design goal was to make the suit as easy as possible to put on and take off between dives. This is achieved through cut-away ankles, inspired by the fast transition features of triathlon suits, and smooth linings in the arms and legs that reduce friction and dry quickly. Comfortable stretch neoprene throughout ensures a close, body-hugging fit that minimises water flushing. The Thermoflex lining on the body core offers impressive thermal performance for warm-water diving. For extra protection on the last dive of the day, the suit can be layered with a Thermocline vest. To reduce water ingress, the Xenos features double-glued and blind-stitched seams, internal PU seals at the ankles, and wrist seals. Its flattering design lines provide both functionality and a great fit.