O'Neill Men's Epic 4/3mm Back Zip Full Wetsuit

The sizing chart is perfect for this product. I bought mine so that I could train in the cold spring water in Northern Ohio. I get bored swimming laps in a pool, so I like to get out in the lakes for some open water swimming and it keeps me warm in 60 degree water. The fit of the wetsuit is very good. Many times you will not have enough space in the arm pits with a modestly-prices suit, but this suit fits perfectly. Plenty of room around the arm pits to get a full stroke and not fatigue the shoulders. Another reviewer mentioned that there is some space in the small of your back with this suit. This happened to me as well, there is a small space in the small of my back, but I don't think this is preventable and it does not really hurt the suits performance. I have broad shoulders and I think this contributes to the fit in the small of the back. Either way, everything about this suit is great, and it is priced fairly.

Have been swimming in it for 2 years now, in San Francisco year around. Perfect size fit and comfort. I am 6’2”, athletic body type in the thin side, size LT.

I rated five stars because the construction of the suit and the materials seem top notch. I’ve only used it about a half a dozen times and it still looks good as New, despite the fact that it fits like a glove so taking it off is even harder than putting it on

Fit is true to size chart. I'm 6'3" 210 and suit fits very well. Bout this about 3-4 weeks ago. I have used this suit at least 15x now for work in temps ranging from 68° - 76° for multiple hours each time with no complaints. Warm with very little flushing. Zipper area you'll get some coolness from water intake but nothing your body won't be able to warm up very quickly. Temperature range I'd feel comfortable using this is from 65°- 78°. Lower than that you'll be chilly and need a long sleeve under armor style shirt, and higher you'll be too warm and need to constantly flush to be able to cool down. I do always wear a seperate CRESSI 3mm hood so keep that in mind. Seams are holding well, cuffs/ gaskets are tight but not uncomfortable. Good deal for a fairly priced wetsuit for general purposes and scuba. Spearfishing and freedivers save up and get a custom high-quality smoothskin (freediving) or open cell (spearfishing) both two pieces with built in hood. This suit is best used for watersports. I tend to get cold very easily so this wetsuit was a very pleasant suprise for being a 4/3. Perfect for any winter water temps in FL and any freshwater springs.

I tried a few suits before I landed on this one. Perfect fit, very comfortable and warm but doesn't overheat me while I'm setting up on the beach. The glued seams make all the difference if you tend to run cold in stitched seams. Had no constrictions while surfing. With other suits I found I'd get a slight tugging that would lead my traps aching after a few hour session. With this suit I was comfortable the whole time and had no undue aches the next day (beside those from being rolled by waves). Great suit, would recommend!

I wear it from 65Deg down to mid 50's without any additional layering. Very comfortable and stretchy.

Update: downgrading to 1 star because after 5 more uses that thing really started falling a part. I found 6 more holes, all alone seams. I windsurf few weekends out of the month, between uses suit always dried and stored appropriately. I really see no reason why it would fall apart except that material usd is garbage. It does the job, fits well and very warm. Giving it 3 stars because of the manufacturing quality. I’ve used it handful of times over 2 years (on weekends, here and there) maybe 2 dozen time total. It still looks like new. The seam around knee pad, split the first time I put it on. After reading warranty, it seemed as such a hassle to send it for repairs so I just left it and was very careful putting that leg on. Today I noticed that seam in armpit splitting as well. I have been in water sports for almost 25 years now and O’Neil was always my go to brand but the quality of their product seems to get worse and worse. If you are looking for a quality product, this is not it.

XXL was perfect for 230lbs/6ft tall with a big belly/chest. I've never had a 4/3, but have decades of experience using thiner wetsuits and neoprene gear for different activities. Most of my stuff is around 2mm. It's crazy how warm 4mm is - I used this suit in 50-55F water and I couldn't even tell I was in the water. Only flaw with the product is the neck velcro easily gets stuck inside the suit and is very difficult to get un-stuck once the suit is on. I know what you're thinking: "they all do that." Not like this; the velcro absolutely welds itself deep inside your shoulder, even if you try to be careful about not dragging the flap in. This annoyance is worth it for the price; still a great value. No fault of the product, but the suit was sent in a box that was literally 6ft long, 3 inches deep, and around 30 inches across. This is obviously absurd, and might be a consideration depending on where you are sending the suit. Also, the suit had clearly been tried on and returned, which is a little gross, but fine with me.

Nice wetsuit and fit me well

If you're looking for a good tall/slim fit wetsuit, this one's for you. In the past simply depending on hieght and weight for a well fitting suit doesn't work. I'm 6' tall and average 150 lbs depending on what I've eaten that day, (seriously it fluctuates that much) with a 31.5" waistline and I bought the Medium/Tall and couldn't be happier. The material is far more flexible than my other suit so getting a snug fit is way easier. Just an Fyi, the velcro for around the neck seal is VERY strong and unles you put it over the opposite velcro strip when putting your suit away, ie in your dive bag etc, it will stick to the neoprene material and start to fray it over time. You won't find a better suit for less money, so just buy it already.

Haven't worn a wetsuit for years, and the last one I bought in person. So to order online made me wonder how it'd fit given the sizing shown online. I"m 6'2" tall, and a 40" chest, but long arms. I picked the size with "large tall". It fit perfect when I got it. The great feature about the suit is the harder neoprene protection on the knees, as evident when I went windsurfing. The processing of climbing on to the board will wear at the knees, and the neoprene pads added grip for stability when standing up. Priced affordably compared to other brands.

Muy buen producto y a la medida

Review of O'Neill Wetsuits Mens 4/3 mm Epic Full Suit. Great wetsuit for the price. Sizing was spot on for me: 6'1, 190lbs = large The 4/3 was enough to keep me nice and warm in late May in Atlantic Canada. Air temp around 15C and water around 8-12C. Felt like I was swimming in Summer. I use this for windsurfing and it has plenty of flexibility. Haven't noticed any significant wear yet, but only half a season in.