Fourth Element Halo A°R

Product Overview

The Halo A°R is Fourth Element’s warmest undersuit. It uses A°RGON™ aerogel insulation, first developed for space exploration and cryogenics, to give extreme warmth from a thinner, less buoyant suit.

Key Features

• A°RGON™ aerogel insulation from shoulders to knees and in other key areas.

• Offset chest zip and baffles cut heat loss from the torso in horizontal trim.

• Wind- and water-repellent stretch outer layer.

• Thumb loops and foot stirrups.

• Zipped pocket; the men's version has an inner zip for access to a pee valve.

Technical Specifications

• Brand: Fourth Element.

• Model: Halo A°R.

• Fit: men's or women's cut.

• Colour: black.

• Sizes: XS to XXXL, with short (S) and tall (T) fits in some sizes (men's); XXS to XXXL, each in regular and short (S) fits (women's).

• Supplier code: HAM01 plus size (for example HAM01M) (men's); HAW01 plus size (for example HAW01M) (women's).

What’s Included

• One Fourth Element Halo A°R undersuit in your chosen size.

Compatibility & Options

Choose Men's or Women's from the Fit menu, then pick your size.

Wear over a J2 or Xerotherm base layer.

Pairs with Halo A°R socks for the warmest set-up.

Check the Fourth Element size guide: short fits in both cuts, tall fits in some men's sizes.

Need Some Advice?

Contact us to check which fit and size will suit you best. The Abyss Scuba School team can help you find the best fit for your diving.