Fourth Element Halo AR Undersuit - Men's Suunto Accessories & Spares It fits across the upper

It fits across the upper palate and requires minimal bite pressure

Pneumatically balanced valve design enhances breathing performance

Unlike traditional jacket-style BCDs or standard backplate-and-wing setups

12L Euro Sidemount Cylinder

5 hours burn time on high and 5 hours on low

Fourth Element Halo AR Undersuit - Men's Suunto Accessories & Spares It fits across the upperIncorporating highly advanced thermal technology and one of the most insulating materials ever developed, the Fourth Element Halo AR Undersuit Mens 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