Unisex Drysuit Fuse 4/3 Back Zip

Cold means nothing

incl. VAT., plus shipping costs


900/5xx black/red

Fuse 4/3 Drysuit Back Zip - 900/5xx black/red
Choose Size
Size Chart
Buy now Find a Dealer
Keen on riding in sub-zero temperatures? ION's Fuse Dry Suit was designed to withstand even the fiercest conditions. Besides warmth, your safety is our utmost concern, that’s why we added features such as the Storm_Whistle and Re_Flective Prints for you to feel confident on the water. The FUSE also features a Detachable_Hood. The abrasion-resistant Supratex_Buttock ensures less wear and tear and, as a result, a longer lifespan. Finally, each suit has to pass ION’s rigorous testing of the waterproof diving drysuit seams before leaving the factory.
6° - 12°C / 21° -54° F

Ever tried to call for help in a roaring storm? Difficult! The Storm_Whistle® is twice as loud as any other mouth-blown whistle in the world and even the US military, special forces and the police is using it. And the best thing is: it even works in and under the water due to its patented harmonic chamber creating the extreme 3150 hertz frequency sound.


Enhanced safety: Venturing onto the water during cold winter months can pose serious risks, particularly due to earlier darkness. In emergencies, you can now depend on added reflective prints on the shoulder/hood area, significantly improving visibility for search and rescue crews using searchlights.


The perfect solution for a full bladder in freezing conditions while wearing a drysuit: The TIZIP Master_Seal® zipper offers the essential feature for extended days on the water. Its easy-pull zipper tape can be discreetly tucked away inside the opening above.


Only super flexible SEAMTITE® Latex_Cuffs by the premium brand SPECIALISEDLATEX are used for the FUSE drysuit on the wrists and ankles to prevent water leaking into the drysuit. The neck cuff is made of super soft and stretchy Neoprene with Glide_Skin inside to improve warmth and wearing comfort.


Key pocket with elastic.

Chest pocket

Internal pocket crafted from mesh fabric enhances ventilation.

Diving Drysuit Seam Technology

All seams are fully taped to ensure 100% waterproofing.

Adjustable hood

Pull the draw cord to tighten or losen the hood. 


Highly abrasion-resistant inserts at the knees.

Glued Blind Stitch

Glued and blind-stitched seams are crafted by first applying adhesive, followed by stitching with a curved needle halfway through the neoprene to ensure water resistance.

MAIN: 80% Neopren 20% Nylon TRIMMING: 100% Latex

Item-no. 48212-4400

Superior Warmth
Superior Warmth
Drysuit Test in action
Kitelife Issue #74

„This suit is a banger. … With the Fuse Drysuit you get without doubt the warmest suit which still guarantees heat even in snowfall.”

Read test

Check out our sustainability contribution