O’Neill Psycho Tech 5.5/4MM Chest Zip w/Hood Full Suit

O’Neill Psycho Tech 5.5/4MM Chest Zip w/Hood Full Suit

Marsoni

M251S

$269.98

Get it in 3 business days with 1 day shipping. Friday, May 29

O’Neill Psycho Tech 5.5/4MM Chest Zip w/Hood Full SuitThe Psycho Tech wetsuit is constructed with super light TechnoButter 3 and Air Firewall Smoothskin in the chest and back for superior warmth. Featuring a 360 barrier with drain holes, super seal cuffs, plus an extra 0. 5mm in thickness. Urethane coated offset zipper teeth and stitch less seams that are 100% triple glued (TBX3 taped interior seams with an exterior fluid seam weld) keep water out. Made with Aqua Alpha solvent free neoprene lamination.

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Your O’Neill Psycho Tech 5.5/4MM Chest Zip w/Hood Full Suit orders ship within 1-2 business days.

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Fast: 2-3 business days
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Exchange/Return Notes

We offer a 30-day return/exchange service after receiving.
Final sale items are not eligible for returns or exchanges.
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I highly recommend! These are so comfortable! Right out of the box, they can be worn all day. The velcro-adjustable straps are great for making for a perfect fit. The aren't clunky to wear, even though they appear to be. They're super cute, in my opinion. The sock liner is textile, so feet feel good all day, not slimy, like leather and suede can sometimes make feet feel if socks aren't worn.

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Reviewed in the United States on March 17, 2026