Fourth Element Women's Halo A°R UndersuitDesigned for unparalleled warmth and performance, the HALO AR sets a new standard in drysuit undersuit technology. Featuring ARGON aerogel insulation, originally developed for space exploration and cryogenics, this compression resistant material delivers exceptional thermal protection with reduced buoyancykeeping you warm without the bulk. With a wind and water repellent stretch outer layer, thumb loops, and foot stirrups, the HALO AR ensures all day
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