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  • O'Neill recommends the Epic II 3/2 Full men's wetsuit for water temperatures ranging from 50°F to 68°F
  • Stretchy 3/2mm neoprene (3mm in body, 2mm in arms and legs) conforms to your body for a flexible, comfortable fit; flatseam construction prevents chafing
  • Rear zipper secures fit, and protective internal flap shields your skin from abrasion; offset zipper teeth slow down water entry into the back of the suit to enhance warmth
  • Hook-and-loop neck tab and long zipper pull in back ease dressing
  • Very comfortable double-seal neck closure offers snug comfort without being restrictive
  • Front and rear Fluidflex™ Firewall neoprene panels protect core and promote unencumbered motion
  • Internal chest panel enhances warmth with a soft, moisture-wicking lining
  • Glued and blindstitched construction blocks out water entry into suit to keep you warmer in the water
  • Tough fabric over knees increases durability
  • External key pocket
  • Hand wash the men's O'Neill Epic II 3/2mm full wetsuit in cold water, drip dry out of sun and store in a cool, dry place


View all O'Neill Long Wetsuits

REI membership


Best Use Watersports
Fabric Neoprene
Sleeve Length Long Sleeve
Gender Men's
Zipper Location Rear

Size chart

Rated 5 out of 5 by from Seemingly a great wetsuit To be clear, I have yet to "get my feet wet" (or any other body part) with this wetsuit. But what I have done thus far is wear the suit, and I wanted to provide feedback for all those people shopping for wetsuits who are unsure of sizing, as I was. I am a bit over 6' tall, weigh 170 pounds, and have what most would call an athletic and lean body-type. I ordered a Large and it fits perfectly. I seem to have great range of motion and have not, in my limited time in the suit, found any unusual or undesirable areas of fit or comfort. Other retail outlets had size options that were not offered through REI, including a "Medium Tall," for which I thought myself a good candidate. I will never know if the Medium Tall could have provided a better fit, but I wanted all potential buyers to know that I think there is some leeway in sizing: I believe the Large would be a good fit if I were about an inch or so taller or shorter, and perhaps 10 or so pounds heavier or lighter. As an aside, I ordered on a Monday and received the product on Wednesday. Thanks REI!
Date published: 2016-04-06
Rated 5 out of 5 by from My first wetsuit I purchased this suit some time ago for kayaking. I found it very well made, and perfect for my intended use. I have left the top part down when it's too warm which has worked pretty well. In colder weather/water, this will be great.
Date published: 2016-06-30
Rated 4 out of 5 by from Keeps me warm enough to swim in Bay Area coast So far it has been excellent, a tiny bit tight for the size though.
Date published: 2016-09-17
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It this a good suit for a triathlon in 60-65 degree water?

Asked by: scottegood
O'Neill recommends the Epic II 3/2 Full men's wetsuit for water temperatures ranging from 50°F to 68°F. This wetsuit is a great choice.
Answered by: REIservice
Date published: 2017-03-23

I have never owned a wet suit and need to know how to size? I am 6 ft and weigh about 210 lbs

Asked by: new to sport
Your height and weight corresponds with a size XL for this wetsuit.
Answered by: REIservice
Date published: 2016-10-18

If you're male, 5'11" and 170 lbs, what size would you be, Large or extra large?

Asked by: CCM933
​Based on the information provided and the sizing chart, choose size large.
Answered by: REIservice
Date published: 2017-04-09

If you are right on the edge for sizing, should you go up or down?

Asked by: mmarx
​Typically, we recommend going up a size.
Answered by: REIservice
Date published: 2017-04-09
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