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4/3mm Men's O'Neill PSYCHO ONE Back Zip Fullsuit
    4/3mm Men's O'Neill PSYCHO ONE Back Zip Fullsuit
    Purchase 4/3mm Men's O'Neill PSYCHO ONE Back Zip Fullsuit
    • SKU: 4965
      4/3mm Men's O'Neill PSYCHO ONE Back Zip Fullsuit

    • $389.95

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    4/3mm Men's O'Neill PSYCHO ONE Back Zip Fullsuit

    Unparalled in premium warmth, flexibility, and weight, this 4/3mm Men's O'Neill PSYCHO ONE Back Zip Fullsuit is perfect for all of your cool water temp activities. The 100% super stretch TechnoButter 3 and Eco carbon black limestone neoprene provides you with all the flexibility you could want and more. Other features include: a Patented Z.E.N. back zip closure with an anti-flush barrier, a minimal seam design with sealed and Fluid Seam Weld liquid taping for a suit that's watertight, TechnoButter 3 Firewall lining for lightweight warmth and quick-drying properties, Krypto knee pads, seamless paddle zones, and a double seal collar for comfort.

    1yr Warranty

    Technical Specs

    Water Temp Rating * 55 Degrees & Up
    Style Fullsuit
    Thickness 4/3mm
    Neoprene Type 100% Stretch
    Seam Construction Sealed & Liquid Taped
    Zipper Style Full Back Zipper
    Internal Features TechnoButter3 Air-Firewall
    * Water temperature ratings are only a guide and are very subjective. If you are cold, get out of the water and seek warmth.
    Allergy notice: It's rare, but neoprene (wetsuits) and/or the materials used in its construction can cause allergic skin reactions. If allergic, discontinue use and consult a physician.
    Warning: California Proposition 65
    Warning: This product can expose you to chemicals including Chloroprene, which is known to the state of California to cause cancer and birth defects or reproductive harm. For more information, go to www.P65Warnings.ca.gov.

    O'Neill Standard Size Chart:

    Size Height (cm) Weight (kg) Chest (cm) Waist (cm)
    XS 170 - 175 57 - 63 91 - 97 71 - 76
    S 173 - 178 61 - 70 97 - 99 76 - 79
    ST 183 - 188 66 - 75 97 - 99 76 - 79
    MS 168 - 173 66 - 75 99 - 104 79 - 84
    M 175 - 180 70 - 77 99 - 104 79 - 84
    MT 185 - 191 73 - 82 99 - 104 79 - 84
    LS 173 - 178 73 - 82 104 - 112 84 - 89
    L 178 - 183 77 - 86 104 - 112 84 - 89
    LT 188 - 193 82 - 91 104 - 112 84 - 89
    XLS 173 - 178 82 - 91 112 - 117 89 - 94
    XL 180 - 185 86 - 95 112 - 117 89 - 94
    XLT 191 - 196 91 - 100 112 - 117 89 - 94
    2XLS 178 - 183 91 - 100 117 - 122 94 - 99
    2XL 183 - 188 95 - 104 117 - 122 94 - 99
    3XL 183 - 191 104 - 113 122 - 130 99 - 112
    4XL 185 - 193 113 - 122 130 - 137 112 - 122
    Size Height Weight (lb) Chest Waist
    XS 5'7 - 5'9" 125 - 140 36.5 - 37.5" 28.5 - 29.5"
    S 5'8 - 5'10" 135 - 155 37.5 - 39" 29.5 - 31"
    ST 6'0 - 6'2" 145 - 165 37.5 - 39" 29.5 - 31"
    MS 5'6.5 - 5'8.5" 145 - 165 39 - 41" 31 - 33"
    M 5'9 - 5'11" 155 - 170 39 - 41" 31 - 33"
    MT 6'1 - 6'3" 160 - 180 39 - 41" 31 - 33"
    LS 5'7.5 - 5'9.5" 160 - 180 41 - 43.5" 33 - 35"
    L 5'10 - 6'0" 170 - 190 41 - 43.5" 33 - 35"
    LT 6'2 - 6'4" 180 - 200 41 - 43.5" 33 - 35"
    XLS 5'8.5 - 5'10.5" 180 - 200 43.5 - 46" 35 - 37"
    XL 5'11 - 6'1" 190 - 210 43.5 - 46" 35 - 37"
    XLT 6'3 - 6'5" 200 -220 43.5 - 46" 35 - 37"
    2XLS 5'9.5 - 5'11.5" 200 - 220 46 - 48.5" 37 - 39"
    2XL 6'0 - 6'2" 210 - 230 46 - 48.5" 37 - 39"
    3XL 6'0 - 6'3" 230 - 250 48.5 - 51" 39 - 44"
    4XL 6'1 - 6'4" 250 - 270 51 - 53.5" 44 - 48"
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