Fourth Element Halo AR Undersuit



Fourth Element Halo AR Undersuit

The Fourth Element Halo AR Undersuit is a wonderful edition to the coldest water, as it is offering the equivalent to a 400g Thinsulate in warmth or better, but with less bulk due to body-mapped insulation and strategically placed compression-resistant “Spacetek” material in the key exposure areas, which maximize insulation when diving in horizontal trim.

Designed for use underneath membrane and trilaminate suits, the Halo AR Undersuit is the perfect complement to the current range of Fourth Element drysuit thermal protection. In a layering combination with Xerotherm, HALO AR is suitable for the harshest diving conditions on the planet.

The Halo AR offers phenomenal insulation properties. The material enables the Halo AR to achieve extreme thermal
protection from a thinner, less buoyant undergarment. With a wind and water-repellent stretch outer layer, comfortable thumb loops and foot stirrups, this is a garment which can be worn in total comfort, all day.

Building on fourth element’s experience in thermal protection and bodymapping, the 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 are protected by a layer of A°RGON™, while other critical areas also benefit from this enhanced insulation without compromising mobility or creating bulk.

Routing a valve is as simple as adjusting the two-way zipper in the fly and a zippered pocket provides a
secure place to store keys, credit cards and cash.

Technical Specs:

  • High performance low bulk
  • Optimized for horizontal trim
  • P-valve ready
  • Exceptional warmth
  • Waterproof outer layer.
  • All-way stretch fabric for snug fit
  • Perfect over a J2 base layer
  • Machine washable
  • Outer: 44% Nylon / 50% Polyester / 6% Elastane
  • Inner: 95% Polyester (74% recycled) / 5% Elastane / A°RGON™ Insulation

Available in Mens and Ladies sizing.

Mens: Small, Med Short, Medium, Med Tall, Large Short, Large, Large Tall, XL Short, XL, XL Tall, XXLS, XXL, XXXLS, XXXL.

Ladies: 4/6, 4/6 Short, 6/8, 6/8 Short, 8/10, 8/10 Short, 10/12, 10/12 Short, 12/14, 12/14 Short, 14/16, 14/16 Short, 16/18, 16/18 Short

Buy Fourth Element Gear Online in Canada with Free Shipping and No Taxes from Dan’s Dive Shop, a Top Stocking Fourth Element Dealer.

Additional information

Weight 4.5 kg
Dimensions 36 × 36 × 24 cm

Ladies, Mens


10, 10 Short, 12, 12 Short, 14 Short, 16, 16 Short, 6, 6 Short, 8, 8 Short, Double Extra Large, Double Extra Large Short, Extra Large, Extra Large Short, Extra Large Tall, Large, Large Short, Large Tall, Medium, Medium Short, Medium Tall, Small, Triple Extra Large


There are no reviews yet.

Only logged in customers who have purchased this product may leave a review.

You may also like…