Psycho One 3/2mm Steamer Chest Zip Wetsuit - Black
Psycho One 3/2mm Steamer Chest Zip Wetsuit - Black
Psycho One 3/2mm Steamer Chest Zip Wetsuit - Black
Psycho One 3/2mm Steamer Chest Zip Wetsuit - Black
Psycho One 3/2mm Steamer Chest Zip Wetsuit - Black
Psycho One 3/2mm Steamer Chest Zip Wetsuit - Black
Psycho One 3/2mm Steamer Chest Zip Wetsuit - Black
Psycho One 3/2mm Steamer Chest Zip Wetsuit - Black
Psycho One 3/2mm Steamer Chest Zip Wetsuit - Black

O'Neill

Psycho One 3/2mm Steamer Chest Zip Wetsuit - Black

13 reviews
SKU:

4966OA-A00

The minimal seamed team rider favourite that is designed to flex how you need it to while keeping you warm for the duration of every session. Now featuring TB Firewall with heat retaining thermal interior layer in the chest, back and legs. Lightweight and loaded with tech, this suit is the ONE to have for high performance surfing. Available in chest zip or back zip.
  • TB3 Neoprene w/ Technobutter Firewall
  • Fluid Seam Weld
  • XS.S.M.MS.MT.L.LS.XL.XLS.XXL
  • Minimal Seam Design
  • CHEST ZIP
  • Double Seal Collar
$499.99 AUD
  • SIZE GUIDE
  • HOW TO MEASURE

Women Wetsuits

SizeSizeHeightWeightChestWaistHipsNeckInseam
2
155-16041-4876-8162-6788-932966-68
4XXS160-16545-5277-8364-6989-943067-69
6S
(shorter)

159-16448-5480-8566-7192-973066-69
6XS163-16850-5780-8566-7192-973067-70
8S 
(shorter)

161-16652-5983-8869-7494-993166-69
8S165-17054-6183-8869-7494-993168-71
10S
(shorter)

164-16957-6686-9174-7798-1033267-69
10M
168-17359-6886-9174-7798-1033269-71
12L170-17564-7390-9577-81102-1073469-72
14XL173-17868-7794-9979-85102-1113570-73
16XXL175-18575-8498-10385-89109-1143671-73


For a wetsuit, we find that your weight is usually the most important measurement to follow. Height is less critical as a wetsuit will still function well if the legs are a little too long or short. We also suggest going for the smaller size if you are tossing up between two sizes.. most women's returns come back because the wetsuit fitted 'Too large'.
  1. Weight - Jump on the scales to weigh yourself.
  2. Height - Your full body height, measured from the floor to the top if your head.
  3. Bust - Keeping the tape level, measure under your arms around the fullest part of the bust.
  4. Waist - Measure at the narrowest part of the natural waistline with no tension around the tape.
  • SIZE GUIDE
  • HOW TO MEASURE

Womens Wetsuit Booties

Product size5w6w7w8w9w10w11w
US - Women's567891011
US - Men's3.54.55.56.57.58.59.5
EU35.536.5383940.54243
UK2.53.54.55.56.57.58.5
CM22.5232425262728

Fit GuideWetsuit Booties are same as US shoe sizes. Its good to have a bootie that is snug so your foot doesnt roll around, but not too snug as we'd hate for a jammed toe to ruin your session.

  • SIZE GUIDE
  • HOW TO MEASURE

Women Gloves

SizeXSSMLXL
Hand Length(mm)165-178178-191191-203203-216216-229
Citcumference(mm)178-191191-203203-216216-229229-241
Hand Length(inches)6.5-77-7.57.5-88-8.58.5-9
Citcumference(inches)7-7.57.5-88-8.58.5-99-9.5
  1. Hand Length - Measurement from the bottom of your palm (where it meets your wrist) to the top if your finger.
  2. Circumference - Measurement of the circumference of yor hand from the first knuckle line, do not include the thumb.
  • SIZE GUIDE
  • HOW TO MEASURE

Women Tops

SizeXSSMLXLXXL
Size6810121416
Bust (cm)80859095100105
Waist (cm)606570758085
Hip (cm)869196101106111
  1. Bust - Keeping the tape level, measure under your arms around the fullest part of the bust.
  2. Waist - Measure at the narrowest part of the natural waistline with no tension around the tape.
  3. Hips - Standing with legs together, measure around the widest part of the low hip.
  • SIZE GUIDE
  • HOW TO MEASURE

Women Bottoms

SizeXSSMLXLXXL
Size6810121416
Pant size242628303234
Waist (cm)606570758085
Hip (cm)869196101106111
  1. Waist - Standing with legs together, measure around the widest part of the low hip.
  2. Hips - Measure at the narrowest part of the natural waistline with no tension around the tape
  • SIZE GUIDE
  • HOW TO MEASURE

Womens Boardshorts

SizeSizeWaistHips
XS0-172-76cm89-93cm
S3-576-80cm94-98cm
M780-85cm98-103cm
L9-1185-89cm103cm-107cm
XL1389-93cm107cm-111cm
  1. Waist - Standing with legs together, measure around the widest part of the low hip.
  2. Hips - Measure at the narrowest part of the natural waistline with no tension around the tape
  • SIZE GUIDE
  • HOW TO MEASURE

Women Headwear


One Size
Head circumference (cm)
56

To Measure - simply measure around the widest part of your head

  • SIZE GUIDE
  • HOW TO MEASURE

Women Snow Jackets

Product SizeUS SizeUK SizeEU SizeBust in cmWaist in cm
XSXS63480-8460-64
SS83685-8965-69
MM103890-9470-74
LL124095-9975-79
XLXL1442100-10480-84
  1. Bust - Keeping the tape level, measure under your arms around the fullest part of the bust.
  2. Waist - Measure at the narrowest part of the natural waistline with no tension around the tape.
  • SIZE GUIDE
  • HOW TO MEASURE

Women Snow Pants

Product SizePant SizeUK SizeEU SizeWaist in cmHip in cm
XS25-26XSXS60-6486-90
S27-28SS65-6991-95
M29-30MM70-7496-100
L31-32LL75-79101-105
XL33-34XLXL80-84106-110
  1. Waist - Standing with legs together, measure around the widest part of the low hip.
  2. Hips - Measure at the narrowest part of the natural waistline with no tension around the tape
  • SIZE GUIDE
  • HOW TO MEASURE

Men Wetsuits

CM IN
SIZESHEIGHT (in)WEIGHT (lbs)CHEST (in)WAIST (in)
XS5'7"-5'9"125-14034.5-36.528-30
S5'8"-5'10"135-15536.5-38.529-31
MS (Shorter)5'6.5"-5'8.5"140-16038.5-40.530.5-32.5
5'9"-6'1"150-17038.5-40.530.5-32.5
MT (Taller)6'1"-6'4"160-18038.5-40.530.5-32.5
LS (Shorter)5'7.5"-5'9.5'"160-18040.5-42.532.5-34.5
L5'10"-6'2"170-19040.5-42.532.5-34.5
XLS (Shorter)5'8.5"-5'10.5"180-20042.5-44.534.5-36.5
XL 5'11"-6'1"190-21042.5-44.534.5-36.5
2XL 6'0"-6'2"210-23044.5-46.536.5-38.5
3XL 6'0"-6'3"230-25047-4938.5-43.5
SIZESHEIGHT (cm)WEIGHT (kg)CHEST (cm)WAIST (cm)
XS170 - 17557 - 6488 - 9371 - 76
173 - 17861 - 7093 - 9874 - 79
MS (Shorter)169 - 17464 - 7398 - 10377 - 83
M175 - 18668 - 7998 - 10377 - 83
MT (Taller)185 - 19173 - 8298 - 10377 - 83
LS (Shorter)171 - 17773 - 82103 - 10883 - 88
L178 - 18777 - 86103 - 10883 - 88
XLS (Shorter)174 - 17982 - 91108 - 11388 - 93
XL180 - 18786 - 95108 - 11388 - 93
2XL183 - 18895 - 104113 - 11893 - 98
3XL183 - 191104 - 113119 - 12498 - 110
Please Note: MT = Medium Tall MS = Medium Short LS = Large Short LT = Large Tall XLS = Extra Large Short
  1. Height - Your full body height, measured from the floor to the top if your head.
  2. Chest - With your arms relaxed and by your side, measure around the fullest part of your chest, which is generally across the nipples.
  3. Waist - Measure around your natural waistline, or the narrowest part if your torso.
  4. Weight - Be brave, strip off and jump on the scales to weigh yourself.
  • SIZE GUIDE
  • HOW TO MEASURE

Men Rashies

CM IN
SIZESHEIGHT (in)WEIGHT (lbs)CHEST (in)WAIST (in)
XS5'7"-5'9"125-14034.5-36.528-30
S5'8"-5'10"135-15536.5-38.529-31
M5'9"-5'11"150-17038.5-40.530.5-32.5
L5'10"-6'0"170-19040.5-42.532.5-34.5
XL5'11"-6'1"190-21042.5-44.534.5-36.5
2XL6'0"-6'2"210-23044.5-46.536.5-38.5
3XL6'0"-6'3"230-25047-4938.5-43.5
SIZESHEIGHT (cm)WEIGHT (kg)CHEST (cm)WAIST (cm)
XS170 - 17557 - 6488 - 9371 - 76
S173 - 17861 - 7093 - 9874 - 79
M175 - 18068 - 7798 - 10377 - 83
L178 - 18377 - 86103 - 10883 - 88
XL180 - 18586 - 95108 - 11388 - 93
2XL183 - 18895 - 104113 - 11893 - 98
3XL183 - 191104 - 113119 - 12498 - 110
  1. Height - Your full body height, measured from the floor to the top if your head.
  2. Chest - With your arms relaxed and by your side, measure around the fullest part of your chest, which is generally across the nipples.
  3. Waist - Measure around your natural waistline, or the narrowest part if your torso.
  4. Weight - Be brave, strip off and jump on the scales to weigh yourself.
  • SIZE GUIDE
  • HOW TO MEASURE

Men Wetsuit Booties

Product size567891011121314
US (mens)567891011121314
US (womens)6.57.58.59.510.511.512.5 13.5 14.5 15.5
EU37.538.5404142.544454647.548.5
UK4.55.5678910111213
CM23.5242526272829303132

 

Fit Guide - Wetsuit Booties are same as US shoe sizes. Its good to have a bootie that is snug so your foot doesnt roll around, but not too snug as we'd hate for a jammed toe to ruin your session.

  • SIZE GUIDE
  • HOW TO MEASURE

Men Wetsuit Gloves

SizeXSSMLXL
Hand Length(mm)165-178178-191191-203203-216216-229
Circumference(mm)178-191191-203203-216216-229229-241
Hand Length(inches)6.5-77-7.57.5-88-8.58.5-9
Circumference(inches)7-7.57.5-88-8.58.5-99-9.5
  1. Hand Length - Measurement from the bottom of your palm (where it meets your wrist) to the top if your finger.
  2. Circumference - Measurement of the circumference of yor hand from the first knuckle line, do not include the thumb.
  • SIZE GUIDE
  • HOW TO MEASURE

Men Tops

SizeXSSMLXLXXLXXXL
Chest86.591.596.5101.5106.5111.5116.5
Waist717681869196101
Hip899499104109114119
  1. Chest - With your arms relaxed by your side, measure around the fullest part of your chest, which is generally across the nipples.
  2. Waist Measure around your natural waistline, or the narrowest part of your torso.
  3. Hip Measure around the fullest part of your hips or bottom.
  • SIZE GUIDE
  • HOW TO MEASURE

Men Bottoms

Size283032343638
SizeXSSMLXLXXL
Waist (inches)283032343638
Waist (cm)717681869196
Hip (cm)899499104109114
  1. Waist - Measure around your natural waistline, or the narrowest part of your torso.
  2. Hip - Measure around the fullest part of your hips or bottom.
  • SIZE GUIDE
  • HOW TO MEASURE

Men Headwear


One SizeS/ML/XL
Head circumference (cm)595861

To Measure - simply measure around the widest part of your head

  • SIZE GUIDE
  • HOW TO MEASURE

Men Footwear

Product size788/991011121314
USA788/991011121314
UK677/88910111213
EU394041424344454647

Fit guide - our footwear sizes are in US sizing. Please use the size table to convert if you are not familiar with US sizing.

  • SIZE GUIDE
  • HOW TO MEASURE

Men Snow Jackets and Snow Pants

Product sizeUK
XS6
S8
M10
L12
XL14
XXL16
  • SIZE GUIDE
  • HOW TO MEASURE

Kids Wetsuits & Rashies

Size12346810121416
Height (cm)78.5-9898-108108-117117-124124-132132-140140-147147-155155-163163-170
Weight (kg)11-13.513.5-1616-18.516-2320-2727-3434-4141-4848-5454-61
Chest (cm)48-5351-55.553-58.562-6764-6966-7171-7674-7979-8484-89
Waist (cm)45-5048-5350-5550-5553-5855-6161-6663-6868-7371-76
  1. Height - Your full body height, measured from the floor to the top if your head.
  2. Weight - Jump on the scales and weigh yourself.
  3. Chest - With your arms relaxed and by your side, measure around the fullest part of your chest, which is generally across the nipples.
  4. Waist - Measure around your natural waistline, or the narrowest part if your torso.
  • SIZE GUIDE
  • HOW TO MEASURE

Kids Wetsuit Boots

SIZEXSSMLXL
US8-910-1112-131-23-4
UK7-89-1011-1213-12-3
EU26-2728-2930-3132-3334-35
Fit Guide - Wetsuit Booties are same as US shoe sizes. Its good to have a bootie that is snug so your foot doesnt roll around, but not too snug as we'd hate for a jammed toe to ruin your session.
  • SIZE GUIDE
  • HOW TO MEASURE

Kids Boys Snow Jackets and Snow Pants

AgeProduct sizeEU sizeUS/CA sizeChest size in cmWaist size in cm
Hip size in cm
1.5-292922T544954
2-398983T555056
3-41041044T565158
5-61161165585362
7-81281286X625666
9-101401408665970
11-1215215210726476
13-1416416412786982
1617617616847488
  1. Chest - With your arms relaxed by your side, measure around the fullest part of your chest, which is generally across the nipples.
  2. Waist - Measure around your natural waistline, or the narrowest part of your torso.
  3. Hip - Measure around the fullest part of your hips or bottom.
  • SIZE GUIDE
  • HOW TO MEASURE

Boys Clothing

SizeSizeWaistChestWeight
Height
S823-24"26-27"25-28kg120-140cm
M10-1225-26"28-29"30-40kg140-152cm
L14-1627-28"30-31"40-50kg152-162cm
XL18-2029-30"32-33"50-57kg162-172cm
  1. Chest - With your arms relaxed by your side, measure around the fullest part of your chest, which is generally across the nipples.
  2. Waist - Measure around your natural waistline, or the narrowest part of your torso.
  • SIZE GUIDE
  • HOW TO MEASURE

Boys Boardshorts

SizeWaistSimilar to a kids size...
2222"6
2323"7
2424"8
2626"12
2828"14
3030"16
  1. Waist - Measure around your natural waistline, or the narrowest part of your torso.
  • SIZE GUIDE
  • HOW TO MEASURE

Kids Girls Snow Jackets and Snow Pants

AgeProduct sizeEU sizeChest size in cmWaist size in cm
Hip size in cm
1.5-29292525154
2-39898545256
3-4104104565358
5-6116116605562
7-8128128645766
9-10140140706073
11-12152152766380
13-14164164826787
16176176887194
  1. Chest - With your arms relaxed by your side, measure around the fullest part of your chest, which is generally across the nipples.
  2. Waist - Measure around your natural waistline, or the narrowest part of your torso.
  3. Hip - Measure around the fullest part of your hips or bottom.

Shipping Information

  • Shipping is Free on orders over $50
  • Shipping is $5.95 on orders under $50
  • Orders placed before 2pm business days are shipped that same day
  • Delivery usually takes 1-2 days to most of Australia
  • We happily accept returns for change of mind, wrong size etc within 60 days
  • Customer is responsible for return shipping costs
  • Please see our Delivery and Returns guides for more info

Features

+ VIEW MORE CHEST ZIP

CHEST ZIP

The O'Neill FUZE Chest Zip uses a free floating zipper panel and anti flush barrier with drain holes to keep you dry and feeling loose.

+ VIEW MORE TB3

TB3

O’Neill’s exclusive, maximum stretch, hydrophobic neoprene with featherlight ENVY foam rubber core. Ultimate warmth and comfort. Built to last.

+ VIEW MORE TECHNOBUTTER FIREWALL

TECHNOBUTTER FIREWALL

Most insulative, lightest neoprene foam core ever, with heat retaining thermal interior layer and quick dry properties even more stretchier then before.

+ VIEW MORE FLUID SEAM WELD

FLUID SEAM WELD

8mm silicone-based urethane sealed exterior with a triple-glued and blind stitched interior. Watertight, durable, and ultra flexible seam.

+ VIEW MORE MINIMAL SEAM DESIGN

MINIMAL SEAM DESIGN

Insane flexibility, fit and durability using a unique design which utilizes larger pannels and less seams.

+ VIEW MORE SUPER SEAL CUFFS

SUPER SEAL CUFFS

Super Seal Cuffs help the wetsuit seal tight around the ankles and wrists to reduce the chance of water sneaking in.

+ VIEW MORE KRYPTO KNEE PADZ

KRYPTO KNEE PADZ

Krypto Knee Padz features O'Neill's tried and tested knee protection material for long lasting durability without impacting comfort.

+ VIEW MORE KEY POCKET

KEY POCKET

Hidden Key Pocket in right leg below the knee. Keep your key safe and in a location that is hassle free.

+ VIEW MORE FREE SHIPPING OVER $50

FREE SHIPPING OVER $50

Fast and Free Shipping on all orders over $50. We pride ourselves on super quick shipping to ensure you can surf sooner, for longer.

+ VIEW MORE SAME DAY SHIPPING

SAME DAY SHIPPING

Place yoiur order before 2pm Business Hours (AEDS) and we'll ship your order that same day. Orders placed after 2pm business days will ship next business day.

+ VIEW MORE 60 DAY RETURNS

60 DAY RETURNS

Order with peace of mind, if it doesn’t fit or take your fancy, we'll happily accept returns for 60 days from delivery date.

+ VIEW MORE THE O'RIGINAL WETSUIT BRAND

THE O'RIGINAL WETSUIT BRAND

O'Neill is the O'Riginal wetsuit brand. Since Jack O'Neill invented the original wetsuit in 1952, O'Neill has been responsible for 90% of origianl wetuit design… that's a fact!

  • Features
  • FAQ'S

CHEST ZIP

The O'Neill FUZE Chest Zip uses a free floating zipper panel and anti flush barrier with drain holes to keep you dry and feeling loose.

TB3

O’Neill’s exclusive, maximum stretch, hydrophobic neoprene with featherlight ENVY foam rubber core. Ultimate warmth and comfort. Built to last.

TECHNOBUTTER FIREWALL

Most insulative, lightest neoprene foam core ever, with heat retaining thermal interior layer and quick dry properties even more stretchier then before.

FLUID SEAM WELD

8mm silicone-based urethane sealed exterior with a triple-glued and blind stitched interior. Watertight, durable, and ultra flexible seam.

How much is shipping for Australian orders?


Orders under $50 incur a $5.95 shipping cost
Orders over $50 receive FREE SHIPPING

How much is shipping for New Zealand orders?


Orders under NZD$100 incur a NZD$10.95 shipping cost
Orders over NZD$100 receive FREE SHIPPING

How long does delivery take?

Orders placed before 2pm on business days will ship that same day. Delivery usually takes 1-2 days within Australia and 2-5 days for NZ.

Whats the return policy?

We are happy to offer refunds for unused products within 60 days of purchase. The customer is responsible for return postage costs. See our return policy for full details.

What size am I?

Please see our size guide to help determine your size. There is a link to the size guide on the product page near the 'Add to cart' button.

WARMEST IN THE WATER

Our new Psycho Series is the pinnacle of our wetsuit line, and ensures you will be the warmest in the water. The Psycho ONE, has unparalleled flexibility and warmth, featuring our exclusive TB3 neoprene. Then the Psycho TECH fearures our incredible Technobutter Air-Firewall. No matter if you are in the dead of winter up north, or down int he deep south, Psycho wetsuits help ensure you are the Warmest In The Water.

FIRST NAME IN THE WATER

If you live and love the ocean then you are sure to know Jack O’Neill. From the wetsuit that let us live the dream of first in and last out to the first ‘surf shop’ that gave us a spiritual home for our wave riding community, Jack’s mission was always to let us have fun and surf longer.

Jordy + TB3 Neoprene

Rider Developed, Rider Proven

Flow State

Customer Reviews
4.5 Based on 13 Reviews
5 ?
54% 
7
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38% 
5
3 ?
8% 
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0% 
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Customer Photos
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Filter Reviews:
TD
15/10/2021
Tim D.
Australia
Tim the retiree

Pretty damn good Good fit Very cosy I want to surf more

MJ
04/10/2021
Michael J.
Australia Australia
Great Wetty

Just bought online and size chart was spot on. Wetsuit fits great and is made really well. First O’neill wetty and can assure you won’t be the last

OC
03/07/2021
oliver c.
Australia Australia
Really good

Really awesome wetsuit, pretty much no resistance when paddling or stretching. The zipper along the chest is the only downfall as it seems to have been placed in a way which restricts stretch in that entire area... would love a zipperless but only seem to be available on the states.

MS
24/05/2021
Mark S.
Australia Australia
Psycho One 3/2mm Med Small Steamer

I had issues with the durability of the Hyperfreak product line, although the most flexible on the market the product life is only 14 to 18 months. I have just bought a Psycho One and happy with the extra warmth and its still very flexible. I can only really advise on the product life after 12 months of continuous use but it appears to be more durable.

L
24/05/2021
Lachlan
Australia Australia
Super comfortable

Might be the most comfy steamer I've ever owned, I'm 6'3/80kg and the MT fits me perfectly. Very small complaint, the other day it was 8-9c with light wind and I got a bit cold while waiting for the sets. Not uncomfortably cold or anything, but it's not as warm as steamers I've had in the past. But as I said, this is definitely one of the most comfortable wetty's I've owned. As long as I wasn't still for too long, I stayed nice and warm. Overall I'm happy with it.

O'Neill Australia Psycho One 3/2mm Steamer Chest Zip Wetsuit - Black Review
24/05/2021
O'Neill Australia

Hi Lachlan, thanks for the great review. What you have said makes perfect sense... This wetsuit, the Psycho One is focused on providing very good warmth with plenty of flexibility. The brother of this suit, the Psycho Tech, is more focused on providing ultimate warmth but sacrifices a tiny little of that comfort and maneuverability/flexibility in favor of extra warmth and wind protection. The key difference is the Psycho Tech features a smoothskin on the chest and back of the body, this smoothskin is that shiny type of neoprene that blocks out the wind, but it's less flexible and adds weight. So the Psycho One that you have doesn't have the smoothskin on chest and back and instead has TB3 neoprene, but is the our best all-round top-end cold water wetsuit, however yes on those super windy days, you might feel the wind a little more. On all the other days, you'll appreciate having a suit that is still very warm, but also light and flexible. Both these Psycho wetsuits have 'Firewalls' which are liners inside the suit to trap extra warmth, so they are both warmer than say our Hyperfreak series suits. Hyperfreak series suits lack a firewall but are made of our most flexible neoprene, TB3X. So those are the most flexible suits but not our warmest. There is always a trade-off of warmth Vs flexibility/weight. What you purchased is considered the best balance of everything. Hope that helps you and other customers choosing between styles!