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  • O'Neill - Heat 4/3 Back Zip Full Wetsuit - Men's - Black/Black
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  • O'Neill - Heat 4/3 Back Zip Full Wetsuit - Men's - Black/Black

O'Neill Heat 4/3 Back Zip Full Wetsuit - Men's

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    1 Review


    Bring the heat.

    Don't be that dude shivering in the lineup--equip yourself with the O'Neill Men's Heat 3Q-Zip FSW 4/3 Full Wetsuit. Ideal for late fall or early spring east- and west-coast surfing, the Heat comes packed with 4/3mm UltraFlex DS neoprene fabric for warmth, stretch, and flexibility, with UltraFlex Firewall chest and back panels for an extra boost of insulation. O'Neill engineers also gave the Heat fluid seam weld construction which uses a silicone-based urethane seal to block out water without feeling uncomfortable or restricting movement.

    The Heat's strategic seamless paddle zones and Sidewinder S-Curve seams further enhance flexibility while its Lumbar Seamless Design (LSD) features a large panel in the rear area of the wetsuit to minimize water entry and maximize stretch, particularly when you're sitting on your board. The Covert Code Red back entry uses a 3/4-length urethane-coated zipper to keep water from entering, while a double Super Seal neck offers tons of adjustability, stretch, and soft comfort. Krypto knee pads improve durability and freedom of movement, and an external key pocket with loop ensures your car or hotel key doesn't end up swimming with the fishes.
    • UltraFlex DS neoprene with UltraFlex Firewall chest and back panels
    • Sidewinder S-Curve seams with a single Fluid weld
    • 3/4-length back zipper
    • Double Super Seal neck
    • Krypto kneepads
    • Handcuff wrist seals
    • LSD lumbar seamless design
    • Covert Code Red zipper
    • External key pocket
    • Item #ONE00M6

    Tech Specs

    [body] UltraFlex DS neoprene, [chest, back] UltraFlex Firewall neoprene
    Water Temp
    54 - 68F
    4 / 3mm
    back, 3/4-length
    Handcuff wrist seal
    Seam Construction
    Sidewinder S-Curve, single Fluid weld
    Recommended Use
    Manufacturer Warranty
    1 year

    Tech Specs

    • Reviews
    • Q & A

    What do you think about this product?

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    The Honda Accord Of Winter Suits

    • Familiarity: I've put it through the wringer

    I surf in San Diego, and our 4/3 season can be pretty short sometimes, so I will typically go with a mid level suit for that reason.

    The wetsuit market is obviously pretty competitive, so I don't think anyone is going to blow your mind for a comparable wetsuit among the major manufacturer's. Most of the folks I know buy based on fit (me included), and O'Neill seems to have my body type down- non-supermodel.

    At any rate, the heat is incredibly durable, has glued and taped seams, firewall in the chest and back, and is just overall a great suit in my opinion. I remember the heat series being a little on the stiff side a few versions ago, but they have steadily improved this suit over the years and I think it is a great value. Obviously, something like a Psycho 3 is going to paddle better and have a few more bells and whistles (and Z.E.N zip is worthy of the extra cash), but if you have a shorter winter season, I would check out the heat before you go dropping $600 on a flashier suit.

    Just one idiot's opinion.