The Fathom Series
Fathom Cold Water Wetsuits
Premium Japanese limestone neoprene through the torso, newly developed performance jerseys and the Isurus fit, at a more accessible price point.
Premium Japanese limestone neoprene torso
Same arms-up design as our Evade series
Built for cold water from 48°F / 9°C
Why Fathom
Warm where it counts.
Premium Japanese limestone neoprene wraps your torso for core warmth and durability, while high-stretch limestone neoprene in the arms and legs keeps every paddle stroke free.
Built on the Evade blueprint.
Arms-up design, a bio-mechanical lat panel and a YKK® chest zip: the same proven fit and architecture as our Evade series.
No shortcuts. Just a different equation.
Newly developed FZS and AQF performance jerseys balance warmth, flexibility and durability, bringing premium materials to a more accessible price point.
“The Fathom is the perfect combination of flexibility and warmth in a chest zip wetsuit, never cold always flexible.”
Shane Desmond, Isurus Ambassador and Test Pilot
Which Fathom is right for you?
Pick your suit by the water you surf. Temperatures are the lowest sea temperature each suit is built for.
Not sure of your size? Use our wetsuit size guide.
Best-in-class cold water wetsuits
Built on the same design principles as our most advanced wetsuits, Fathom brings Isurus performance to more surfers. By integrating premium Japanese limestone-based neoprene with newly developed performance jerseys, we've engineered a cold water wetsuit that balances warmth, flexibility and durability with a more accessible price point.
Looking for our ultra-premium range? Explore the Evade, Shield and Ti Alpha series.
What water temperatures is Fathom built for?
The Fathom 5.4 Hooded is built for water from 48°F / 9°C, the 4.3 Hooded from 52°F / 11°C, the 4.3 from 54°F / 12°C and the 3.2 from 56°F / 13°C.
What is Fathom made from?
Premium Japanese limestone neoprene in the torso for warmth and durability, limestone neoprene in the arms and legs for extreme stretch, and our newly developed FZS (Four Zone Stretch) and AQF (Advanced Quantum Flex) performance jerseys.
How does Fathom compare to our Evade series?
Fathom shares the Evade's chest-zip architecture: arms-up design, bio-mechanical lat panel and YKK® zip. Where Evade uses premium Japanese neoprene throughout, Fathom blends materials with intention to bring the same fit and performance to a more accessible price point.
How do I choose my size?
Fathom comes in 13 sizes, from S to XXL, including short and tall fits. Use our wetsuit size guide to find yours.
Where can I try Fathom on?
Visit one of our Isurus retailers to feel the material and get fitted.
What warranty does Fathom come with?
Every Fathom wetsuit comes with a 1 year limited warranty.