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O'Neill Psycho One 3/2mm Chest Zip Wetsuit (2022) - Black 1

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O'Neill Psycho One 3/2mm Chest Zip Wetsuit (2022) - Black

Name: Psycho One 3/2mm Chest Zip Wetsuit (2022) - Black - L
Brand: O'Neill
SKU: 176141UK
Price: 265.00 GBP
Availability: InStock
Rating: 5.00 (1 reviews)

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Offering an unparalleled premium in lightweight flexibility and durability the Psycho One 3/2mm Chest Zip Wetsuit from O’Neill’s now features a TB Firewall with a heat retaining thermal interior layer in the chest, back, and legs as well as a team inspired minimal seam design.

Product Information:

• Product Code: 5420S22-A00
• F.U.Z.E. Closure (Chest Zip)
• Minimal Seam Design
• 360° Barrier With Drain Holes (F.U.Z.E.)
• Double Seal Collar
• Fluid Seam Weld
• Arms/ Shoulders/Calf: TechnoButter 3
• Chest / Back/Shins/Butt: TechnoButter 3 Firewall
• Aqua Alpha Solvent Free Neoprene Lamination
• Eco Carbon Black in Neoprene
• Limestone Neoprene
• Dope-Dyed Yarn Jersey

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Wetsuit Size Guide

We have put together a wetsuit size guide to help you pick the perfect fitting wetsuit as we know it can be tricky sometimes as our different brands of wetsuits vary in size.

To get the correct fit of your wetsuit, you should ensure that the wetsuit is as tight to the skin as possible to avoid any water flushing through the openings, this allows for warmth and comfort.

At first the tightness of the suit may feel a little snug but that just means it is working and it will give slightly over time. If you are still worried about rubbing, you can always wear a rash vest underneath.

Use our wetsuit size guide to find your perfect fitting suit. Hover over each section to see how to measure.

O'Neill is one of the most recognisable brands in the surf industry, providing boards and surfwear since 1952, based in Southern California. They're credited with inventing not just the wetsuit, but the leash too, and are now not just a leading surf brand, but also in the worlds of snowsports and general outdoor lifestyle.

Mens Womens

Inch CM

Size	Height (feet/inches)	Chest (inch)	Waist (inch)
S	5'8" - 5'10"	37.5" - 39"	29.5" - 31"
ST	6'0" - 6'2"	37.5" - 39"	29.5" - 31"
MS	5'6.5" - 5'8.5"	39" - 41"	31" - 33"
M	5'9" - 5'11"	39" - 41"	31" - 33"
MT	6'1" - 6'3"	39" - 41"	31" - 33"
LS	5'7.5" - 5'9.5"	41" - 43.5"	33" - 35"
L	5'10" - 6'0"	41" - 43.5"	33" - 35"
LT	6'2" - 6'4"	41" - 43.5"	33" - 35"
XLS	5'8.5" - 5'10.5"	43.5" - 46"	35" - 37"
XL	5'11" - 6'1"	43.5" - 46"	35" - 37"
XLT	6'3" - 6'5"	43.5" - 46"	35" - 37"
2XL	6'0" - 6'2"	46" - 48.5"	37" - 39"

Size	Height (cm)	Chest (cm)	Waist (cm)
S	173 - 178cm	95 - 99cm	75 - 79cm
ST	183 - 188cm	95 - 99cm	75 - 79cm
MS	169 - 174cm	99 - 104cm	79 - 84cm
M	175 - 180cm	99 - 104cm	79 - 84cm
MT	185 - 191cm	99 - 104cm	79 - 84cm
LS	171 - 177cm	104 - 110cm	84 - 89cm
L	178 - 183cm	104 - 110cm	84 - 89cm
LT	188 - 193cm	104 - 110cm	84 - 89cm
XLS	174 - 179cm	110 - 117cm	89 - 94cm
XL	180 - 185cm	110 - 117cm	89 - 94cm
XLT	191 - 196cm	110 - 117cm	89 - 94cm
2XL	183 - 188cm	117 - 123cm	94 - 99cm

Inch CM

Size	Height (feet/inches)	Chest (inch)	Waist (inch)
US 2 / UK 4	5'1" - 5'3"	30" - 32"	24.5" - 26.5"
US 4 / UK 6	5'3" - 5'5"	30.5" - 32.5"	25" - 27"
US 6S / UK 8S	5'2.5" - 5'4.5"	31.5" - 33.5"	26" - 28"
US 6 / UK 8	5'4" - 5'6"	31.5" - 33.5"	26" - 28"
US 6T / UK 8T	5'5.5" - 5'7.5"	31.5" - 33.5"	26" - 28"
US 8S / UK 10S	5'3.5" - 5'5.5"	32.5" - 34.5"	27" - 29"
US 8 / UK 10	5'5" - 5'7"	32.5" - 34.5"	27" - 29"
US 8T / UK 10T	5'6.5" - 5'8.5"	32.5" - 34.5"	27" - 29"
US 10S / UK 12S	5'4.5" - 5'6.5"	34" - 36"	26" - 30.5"
US 10 / UK 12	5'6" - 5'8"	34" - 36"	29" - 30.5"
US 10T / UK 12T	5'7.5" - 5'9.5"	34" - 36"	29" - 30.5"
US 12 / UK 14	5'7" - 5'9"	35.5" - 37.5"	30.5" - 32"
US 14 / UK 16	5'8" - 5'10"	37" - 39"	31" - 33.5"
US 16 / UK 18	5'9" - 5'11"	38.5" - 40.5"	33.5" - 35"

Size	Height (cm)	Chest (cm)	Waist (cm)
US 2 / UK 4	155 - 160cm	76 - 81cm	62 - 67cm
US 4 / UK 6	160 - 165cm	77 - 83cm	64 - 69cm
US 6S / UK 8S	159 - 164cm	80 - 85cm	66 - 71cm
US 6 / UK 8	163 - 168cm	80 - 85cm	66 - 71cm
US 6T / UK 8T	166 - 171cm	80 - 85cm	66 - 71cm
US 8S / UK 10S	161 - 166cm	83 - 88cm	69 - 74cm
US 8 / UK 10	165 - 170cm	83 - 88cm	69 - 74cm
US 8T / UK 10T	169 - 174cm	83 - 88cm	69 - 74cm
US 10S / UK 12S	164 - 169cm	86 - 91cm	74 - 77cm
US 10 / UK 12	168 - 173cm	86 - 91cm	74 - 77cm
US 10T / UK 12T	171 - 177cm	86 - 91cm	74 - 77cm
US 12 / UK 14	170 - 175cm	90 - 95cm	77 - 81cm
US 14 / UK 16	173 - 178cm	94 - 99cm	79 - 85cm
US 16 / UK 18	175 - 180cm	98 - 103cm	85 - 89cm

Make sure you pull up all the excess neoprene from the bottom of the wetsuit. The knee pads should be placed over the knees.
When the suit is on you should be able to put your arms diagonally out and there will be no excess neoprene under your arms.
When you have the suit on, and you can grab excess on the back then you will need to go for a different size.
The most important place to get correct is around the core of the body. Focusing on the chest and shoulders.
If the suit is too big it will flush with water, so you need to make sure you get the correct size. It should sit above the ankle bone and above the wrist and be quite snug on your body (do not worry, it will give slightly over time!).
If you are struggling with the wetsuit being too tight around the neck we do have rash vests available which will help with that.

Measuring the Height

For the correct height you should measure from the top of the head all the way down to your toes.

Measuring the Chest

To get correct size for the chest you should measure across the widest point of your body (or the nipple line to be more precise).

Measuring the Waist

For the waist measurement you should go from the belly button line across the body.

Measuring the Hips

For woman’s wetsuits you may want to measure your hip size as well. To do this you will need to go across the hips from the widest point.

Seen a lower price elsewhere? Ann's Cottage will do our best to match any price request, simply click below

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O'Neill Psycho One 3/2mm Chest Zip Wetsuit (2022) - Black

Wetsuit Size Guide

Measuring the Height

Measuring the Chest

Measuring the Waist

Measuring the Hips