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The most advanced wetsuit lining on the market and warmest Xcel has ever created, Celliant Black is designed to recycle your body heat into infrared via its smartfibre technology. The Infrared created from this revolutionary design has a number of benefits including unparalleled warmth, stamina enhancing, increased recovery time and enhanced performance. Not only is it ridiculously warm and lightweight, Celliant Black absorbs less water than regular linings and dries in phenomenal time. Celliant Black is a game changer in performance wetsuit tech.