O'Neill Hyperfreak 5/4+ Hooded Chest Zip Wetsuit

O'Neill Hyperfreak 5/4+ Hooded Chest Zip Wetsuit 5 5 5
SKU: ONL5347
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Availability: In stock


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The O'Neill Hyperfreak 5/4+ Hooded Chest Zip Wetsuit is constructed from super light TechnoButter 3 and TBX neoprene to give you maximum stretch. O'Neill added 0.5 mm extra of neoprene to this model as a step-up from your normal 5/4. The seams are glued and blindstitched and fully taped with TB3X tape to create an excellent barrier while maintaining your range of motion and flexibility. The Front Upper Zip Entry system uses a free-floating zipper panel and an anti-rash barrier with drain holes to keep you dry and feeling loose.


  • Thickness: 5.5/4.5mm
  • Neoprene: TechnoButter 3
  • Internal Lining: TechnoButter 3X Interior Jersey
  • Seams: Sealed/Taped
  • Zipper: Chest Zip
  • Hood: Attached Hood
  • Model Year: 2019/2020
  • Manufacturers Part Number: 5347

Product Features

  • F.U.Z.E (Front Upper Zipper Entry) uses a free floating zipper panel and anti flush barrier with drain holes to keep you dry and feeling loose
  • Right to left chest closure
  • 360-degree barrier with drain holes
  • TB3X fully taped seams
  • Glued and blindstitched seams
  • Full body and legs made with TechnoButter 3 neoprene
  • Arms and shoulders made with TechnoButter 3X neoprene
  • Plus (+) = 0.5mm extra thickness for even more warmth
  • Minimal seam design for insane flexibilty, fit and durability
  • Hidden key loop on right leg
  • Aqua Alpha: eco friendly solvent glue that is water based and free of VOC's
  • Limestone-based neoprene sourced from Japan


O'Neill Hyperfreak 5/4+ Hooded Chest Zip Wetsuit ExcellentReview by IG IG
Incredible suit. Flexible and warm! Cleanline Team was awesome!
(Posted on 1/31/2020) 2020-01-31
O'Neill Hyperfreak 5/4+ Hooded Chest Zip Wetsuit My favorite wetsuit!Review by Hunter Hunter
Bought this a month ago and I love it! Material is super stretchy, feels more like my 4/3 even though it's a 5/4+.

A size Large fit me perfectly as I have broad shoulders. Much easier to get on/off than other suits I have. Plenty warm. I surfed yesterday where it was windy and no issues with the wind even though it doesn't have the "smooth skin" that other suites have.

It is a mid level suit in O'neill's lineup but man I don't miss any of the extra bells and whistles the top level suits have. Would buy this suit again without a doubt especially at the price.

Just a great fitting suit and working with Cleanline was awesome, would buy from them again!

(Posted on 1/27/2020) 2020-01-27
O'Neill Hyperfreak 5/4+ Hooded Chest Zip Wetsuit This is the best suit I've ever worn. Review by MNSurfer MNSurfer
Hands down amazing!!! This is the stretchiest, warmest and most comfortable suit I've ever worn! I've been in mine for over 3 months and it's held up great so far. Probably not the most durable suit, but hey at this price just buy two!
(Posted on 1/14/2020) 2020-01-14
O'Neill Hyperfreak 5/4+ Hooded Chest Zip Wetsuit Best suit I've ever worn! Review by Diesel Dave Diesel Dave
By far the lightest and stretchiest suit I've ever worn and it's plenty warm! This suits a game changer. Thanks for the recommendation guy's!
(Posted on 11/19/2019) 2019-11-19
O'Neill Hyperfreak 5/4+ Hooded Chest Zip Wetsuit Excellent SuitReview by Brendan Brendan
I recently bought this suit as advised by the guys in the shop. Incredibly stretchy, it doesn't restrict my arms in the slightest. I am staying very warm, even while just waiting around for waves.

Very happy with the purchase!

(Posted on 8/21/2019) 2019-08-21

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Size Chart

O’Neill Men’s Wetsuits — Size Chart

The staff at Cleanline Surf specialize in sizing O'Neill Wetsuits. If you have never tried an O'Neill suit before, we strongly urge you to call us for expert advice on sizing. We do have a size chart available below, but please take it with a grain of salt. For the perfect fit the first time please call and speak with one of our wetsuit experts.

XS5′7″-5′9″125-140 lbs36.5-37.5″28.5-29.5″
S5′8″-5′10″135-155 lbs37.5-39″29.5-31″
ST6′0″-6′2″145-165 lbs37.5-39″29.5-31″
MS5′6.5″-5′8.5″145-165 lbs39-41″31-33″
M5′9″-5′11″155-170 lbs39-41″31-33″
MT6′1″-6′3″160-180 lbs39-41″31-33″
LS5′7.5″-5′9.5″160-180 lbs41-43.5″33-35″
L5′10″-6′0″170-190 lbs41-43.5″33-35″
LT6′2″-6′4″180-200 lbs41-43.5″33-35″
XLS5′8.5′-5′10.5″180-200 lbs43.5-46″35-37″
XL5′11″-6′1″190-210 lbs43.5-46″35-37″
XLT6′3″-6′5″200-220 lbs43.5-46″35-37″
2XLS5′9.5″-5′11.5″200-220 lbs46-48.5″37-39″
2XL6′0″-6′2″210-230 lbs46-48.5″37-39″
3XL6′0″-6′3″230-250 lbs48.5-51″39-44″
4XL6′1″-6′4″250-270 lbs51-53.5″44-48″

Full O’Neill Wetsuit Sizing Chart



If the product is found to be defective under normal use and proper care, O'Neill will repair or replace the product at our sole discretion. The decision to replace or repair a product is made by the O'Neill Warranty Department after receipt of the defective product. At no time does the O'Neill offer refunds. Defective product should be returned clean and dry, postage prepaid. Please include a note with product description, product defects, requested action, return address (be sure to include postal code, especially for Canadian addresses), daytime phone number with area code, customers name and a copy of the purchase receipt sent to the address below.

Suits without a copy of the purchase receipt will NOT BE COVERED UNDER WARRANTY.


  • Products classified as seconds
  • Fading from sunlight
  • Alterations
  • Materials over 1 year (from date of original purchase), or 90 days for accessories
  • Repairs or alterations done by anyone other than O'Neill or an O'Neill authorized repair facility
  • Warranty request without original receipt


Flat-Stitched Products, Glued and Blindstitched Products, and Fluid Seam Weld Products

  • Limited 1-year warranty (from date of original purchase) on workmanship and materials.

Neoprene Dry Suits

  • Limited 1-year warranty (from date of original purchase) on workman ship and materials (waterproof zipper excluded)


  • Limited 90-day (from date of original purchase) warranty on workmanship and materials


For repairs received from the dealer or end user, O'Neill offers:

  • 10 Business Day Turnaround for warranty Stitched Suits
  • 10 Business Day Turnaround for warranty Glued Suits
  • 20 Business Day Turnaround for warranty Fluid Seam Welded Suits
  • 30 Business Day Turnaround for all Non-Warranty Repairs

Repairs are to be returned clean and dry, postage paid. Please include the name and a daytime phone number with area code, return address, product description, and requested action.

Send Repairs To:

O'Neill U.S. Warranty Repair
1022 Bay Marina Drive, Suite 140B
National City, CA 91950
Tel: 1-800-331-1637


Returns are easy! We understand that in some situations returns or exchanges may be necessary. We also want you to be stoked on your purchase. If you are not 100% satisfied with your purchase you may return it for a full refund, or exchange within 30 days of receiving your order. Items must be in new condition with original tags and packaging.

Please make sure your wetsuit fits before taking it in the water. We are not able to take returns or exchanges on used wetsuits.

Please reference our full Return Policy.

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