Fourth Element HALO A°R Women’s Drysuit Undergarment – Ultimate Cold-Water Thermal Protection
Stay warm and comfortable in Southern California’s colder dive conditions with the Fourth Element HALO A°R Women’s Undergarment, the most advanced thermal diving undersuit available today. Engineered using technology inspired by space exploration and cryogenics, the HALO A°R delivers unmatched warmth with minimal bulk—ideal for serious cold-water scuba diving in Los Angeles and beyond.
At the core of the HALO A°R is A°RGON™ aerogel insulation, one of the most efficient insulating materials ever developed. This cutting-edge technology allows divers to achieve extreme thermal protection without the added buoyancy or restriction of traditional thick undergarments, making it perfect for long dives and technical profiles.
Designed for Performance, Comfort, and Mobility
Advanced body-mapped insulation, developed using thermal imaging data, strategically places A°RGON™ insulation where divers lose the most heat. The torso—from shoulders to knees—is fully insulated to maximize warmth in a horizontal trim position, while maintaining flexibility and freedom of movement.
A water- and wind-repellent stretch outer layer, combined with an offset chest zipper and low-profile baffles, minimizes heat loss and bulk. Thoughtful features like thumb loops, foot stirrups, and a two-way zipper for P-valve compatibility ensure all-day comfort and convenience during cold-water dives.
Key Features
-
A°RGON™ Aerogel – Extreme-performance thermal insulation
-
Body-Mapped Thermal Protection for optimized heat retention
-
High Warmth, Low Bulk design
-
Optimized for Horizontal Trim
-
P-Valve Ready two-way zipper
-
Water-Repellent Outer Layer
-
All-Way Stretch Fabric for a snug, comfortable fit
-
Secure Zippered Pocket for small essentials
-
Machine Washable
Material Composition
-
Outer: 83% Polyester, 13% PU, 4% Elastane
-
Insulation: A°RGON™ Aerogel
-
Inner: 68% Polyester, 32% Recycled S.Cafe® Polyester
The Fourth Element HALO A°R Women’s Undergarment is the top choice for divers seeking premium warmth, performance, and mobility when drysuit diving in California waters. Available now at Los Angeles Scuba, your trusted source for high-performance scuba diving gear.
