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Fourth Element Halo3D Undersuit -Features

The Fourth Element Halo3D is an advanced technology undersuit that is equivalent to a 400g thinsulate but with less bulk due to body-mapped insulation and strategically placed compression-resistant Spacetek material in key exposure areas to maximise insulation when diving in horizontal trim.

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Right Arm Pocket

The right arm of the suit has a useful little pocket, ideal for small valuables.

P-Valve Holes

There are P-valve holes located at the inner thigh of both legs of the suit so the user can select the preferred side for routing the catheter. The holes are not fully open as only very few divers need to use them. In case a P-valve is required, sharp scissors are needed to carefully cut the hole wide enough for the catheter tube to fit through it. Extreme caution should be practiced doing so, as cutting to or beyond the end of the button hole stitching will make the fabric to fray.

SpaceTek Compression Resistant Panels

The torso front, thighs and shoulders are protected with constant compression resistant layer of air provided by SPACETEK material, which blends perfectly with the dual layer construction.. The additional protection has an obvious benefit as soon as you enter the water, as you feel cocooned by 8mm thick enhancement protection layers.

High Density Fleece

Critical areas receive extra protection provided by three layers of heavy weight, high density material. The vulnerable areas -back, kidney region, buttocks and hamstring region receive extra protection. Better comfort and warmth are guaranteed by insulation offered by combining this extra protection with the SPACETEK material.

Thumb Loops

Donning of the drysuit on top of the Halo 3D is made easier with thumb loops on the sleeves.


One Piece Design

The one piece design is simple and functional; lower profile around the hips and midriff, allowing high manoeuvrability with panels of additional thermal protection layers located where they are needed most, enhancing the thermal protection in critical zones without excessive bulkiness. It can be worn as part of a layer system combined with Fourth Element Drybase, Xerotherm and in extreme cases, such as Ice diving, even Arctic.