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Fathom 4.3 Wetsuit

ISURUS

Regular price $419.99

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only 1 left in stock

 

about the Fathom 4.3 Wetsuit

The versatile all-around performer in the range, the Fathom 4/3 provides dependable warmth for cool-water conditions while maintaining excellent flexibility. Designed for temperatures around 54°F / 12°C, it's a reliable choice for everyday surfing across changing seasons.

Using the new Fathom Alloy:

By integrating Premium Japanese Limestone Neoprene with newly developed Performance Jerseys, we’ve engineered a wetsuit that balances warmth, flexibility, and durability with a more accessible price point

Sharing the same front-zip architecture (arms-up design, bio-mechanical lat panel, YKK front zip design, etc) as the Evade series, the Fathom Alloy delivers proven fit and performance - reimagined through a more forgiving, everyday material platform.

No shortcuts. Just a different equation.

 

why we use premium neoprene




Specifications

  • Premium Japanese Limestone Neoprene - Torso for warmth and durability
  • Limestone Neoprene - Arms and Legs for extreme stretch
  • FZS (Four Zone Stretch) Jersey
  • AQF (Advanced Quantum Flex) Jersey
  • Duraflex® Hardware
  • YKK® Military Grade Zippers
  • SCS Seam Tape
  • Forward Propulsion System
  • Silicone Pre-Tensioners
  • Bluesign® & Oeko® Certified Jersey
  • #38 STX Kneepads

Features

  • Arms Up Design
  • Bio-Mechanical Lat Panel
  • Muscles Stabilization Technology
  • NEW Dual Silicone Inner Wrist Cuff and Leg Opening Seals
  • Gutter Ball Drainage
  • Key Pocket
  • 1 year limited warranty

Water Temperature


> 54°F | > 12°C



Sizing

Model pictured wears a size M: Height 5’10” (178 cm), Weight 165 lbs (75 kg), Chest 40” (102 cm), Waist 33" (84 cm), Inseam 32" (81 cm)

Note: size LTS is designed specifically for a surfer build with long arms and legs where a MT is too short on the arms/legs and the LT is too lose. 

Best-In-Class Wetsuits

Premium materials cost more. We want more surfers to experience ISURUS wetsuits. By combining proprietary Japanese Limestone Neoprenes and Jerseys, our Fathom Alloy provides incredible performance at a more accessible price point.

Alloys For The Win

Modern alloys make modern engineering, construction and technology possible. It means we can make better products at a lower price without resorting to using the same mass-market factories as 95% of the wetsuit industry.

Same ISURUS Fit & Design

Materials are critical to warm, flexible wetsuits, but the fit is also key. ISURUS wetsuits just "fit better" - and that's thanks to our panel design and arms-up construction. The Fathom Series features the same ISURUS fit that surfers love.

SIZE CHART 

Wetsuit Size Guide

Isurus Compression Fit Wetsuits

Jump to: Men's Wetsuit Size Guide | Women's Wetsuit Size Guide

Isurus wetsuits are compression fitted. They are designed to fit snug. The wetsuit will mold to your body after a few sessions.

Use this guide to find your perfect size. If you're still unsure what size to take, please contact us, we're only too happy to help.

Men's Wetsuit Size Guide

For info, our model wears a size M: Height 5’10” (178 cm), Weight 165 lbs (75 kg), Chest 40” (102 cm), Waist 33" (84 cm), Inseam 32" (81 cm)

  • Size

    Height (ft)

    Weight (lbs)

    XS 5'2"-5'5" 120-130
    S 5'5"-5'8" 130-145
    ST 5'8" - 6'0" 135-150
    MS 5'6"-5'9" 140-155
    M 5'7"-5'9" 145-160
    MT 5'10"-6'0" 155-170
    LS 5'8"-5'11" 165-180
    L 5'10"-6' 0" 170-185
    LTS* 6'1"-6"4" 160-175
    LT 6'0"-6'3" 185-200
    XLS 5'8"-5'10" 180-195
    XL 6'0"-6'3" 195-215
    XLT 6'3"-6'6" 205-220
    XXL 6'2"-6'5" 220-240

 

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