Incorporating highly advanced thermal technology and one of the most insulating materials ever developed, the Fourth Element Halo AR Undersuit – Ladies performance exceeds expectations.

Using technology originally created for space exploration and cryogenics, the Halo AR features the extreme insulation material ARGON aerogel in a compression resistant matrix.

This materials phenomenal insulation properties enables the Halo AR to achieve extreme thermal protection from a thinner, less buoyant diving undersuit. With a wind and water-repellent stretch outer layer, comfortable thumb loops and foot stirrups, this undersuit can be worn in total comfort all day.

Building on Fourth Element’s experience in thermal protection and body-mapping, the Fourth Element Halo AR was assessed with thermal imaging cameras to improve and modify prototypes.

The offset chest zip and baffles ensure that heat lost from the torso is minimised when in horizontal trim. All the body, from shoulders to knees, is protected by a layer of ARGON, while other critical areas also benefit from this enhanced insulation without compromising mobility or creating bulk.

Routing a p-valve in Fourth Element Halo AR Undersuit – Ladies is as simple as adjusting the two-way zipper in the fly. Zippered pocket provides a secure place to store keys, credit cards and cash.

Fourth Element Halo AR Undersuit

• ARGON – extreme performance thermal insulation
• Bodymapped thermal protection
• High performance low bulk
• Optimised for horizontal trim
• P-valve ready
• Exceptional warmth
• Water-repellent outer layer
• All-way stretch fabric for snug fit
• Machine washable
• Outer: 44% Nylon / 50% Polyester / 6% Elastane
• Inner: 95% Polyester (74% recycled) / 5% Elastane / ARGON Insulation