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O'Neill Men's 5.5/4MM Psycho Tech F.U.Z.E. Chest Zip Hooded Fullsuit Wetsuit O'Neill Men's 5.5/4MM Psycho Tech F.U.Z.E. Chest Zip Hooded Fullsuit Wetsuit

O'Neill Men's 5.5/4MM Psycho Tech F.U.Z.E. Chest Zip Hooded Fullsuit Wetsuit

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SKU: 4579
Product Code: 8135122
Availability: Usually Ships in 24 Hours
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  • Head out to the waves in lighter, warmer, more insulating comfort than ever before with the O'Neill Men's 5.5/4MM Psycho Tech F.U.Z.E. Chest Zip Hooded Fullsuit. With an easier entry, this wetsuit combines O’Neill’s excusive TechnoButter 2 neoprene and TechnoButter 2-Air Firewall insulation for a quick-drying, exceptionally warm design that is perfect for cold-water surf sessions.


    • TechnoButter 2 neoprene.
    • TechnoButter 2-Air Firewall insulation.
    • Single Fluid Seam Weld: Keeps water from entering at all seams and critical points.
    • Super Seal neck: Fused seal for low-profile design.
    • Strategic seamless paddle zones: Adds comfort.
    • Thickness: 5.5/4mm.


    • Psycho Tech F.U.Z.E. men’s surf wetsuit.
    • Attached hood: For added coverage and warmth.
    • Chest zip design: For easy on/off.
    • External key pocket with loop.
    • Plasma wrist and ankle seals: Grips the wrist and ankles for a secure fit.
    • F.U.Z.E. Entry System:
            - Front upper zip entry with same technology as Patented Z.E.N. Zip closure.
            - Blocks out water without restricting flexibility.
            - Drain hole guides out any water that enters.
    • TechnoButter 2 and TechnoButter 2-Air Firewall neoprene:
            - The most advanced super stretch neoprene.
            - 20% lighter and 30% less water absorption.
            - Improved durability with quick-drying technology.
    • Lumbar Seamless Design (LSD): For optimal comfort and support.

    Country of Origin

    • Imported

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Jack O'Neill began surfing in 1952, before functional surf apparel was invented. While working for the Army Air Corps, O'Neill discovered neoprene foam in a DC-3 airplane. He then combined the neoprene carpeting with duct tape to create the first neoprene wetsuit.

Demand for O'Neill's neoprene wetsuits grew rapidly and he began a business selling the O'Neill wetsuits out of his garage. By 1980, he was a leader in the beach apparel industry with a thriving business. Since then, O'Neill™ has become a widely recognized and respected brand in the surf industry, continually creating new and innovative products. In addition to O'Neill wetsuits, they carry O'Neill boardshorts, O'Neill dresses, O'Neill hats, O'Neill rash guards, O'Neill swimsuits, O'Neill water shoes, O'Neill sandals, O'Neill life jackets and O'Neill t-shirts.

In addition to his business success, O'Neill also created a non-profit foundation for kids. O'Neill developed the O'Neill Sea Odyssey Program: a free, educational cruise that introduces kids to the microbiology of the Monterey Bay Marine Sanctuary, beginning at Jack O'Neill's doorstep.