Engineered with cutting-edge thermal technology, the HALO A°R redefines what’s possible in a drysuit undersuit. Featuring A°RGON™ aerogel insulation, originally developed for space exploration and cryogenics, it delivers exceptional warmth with minimal bulk and buoyancy.
Designed for all-day comfort, the HALO A°R combines a wind and water-repellent stretch outer layer with thumb loops and foot stirrups for a secure fit. Fourth Element’s bodymapping technology, enhanced by thermal imaging, ensures strategic insulation where divers need it most—from shoulders to knees and other key areas—without restricting mobility.
The offset chest zip and baffles minimize heat loss in horizontal trim, while a two-way zipper in the fly makes valve routing effortless. A zippered pocket provides a secure place for keys, cards, or cash.
From deep dives to extreme conditions, the HALO A°R is built for unrivaled thermal protection, reduced buoyancy, and unrestricted movement—so you can focus on the dive, not the cold.
