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Synergy Triathlon Wetsuit Men’s Endorphin Full Sleeve Neoprene for Open Water Swimming

  • Based on 95 reviews
Condition: New
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$395.00 Why this price?
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Availability: Only 2 left in stock, order soon!
Fulfilled by Amazon

Arrives Aug 31 – Sep 1
Order within 15 hours and 31 minutes
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Color: Black/Blue


Size: L2


Features

  • 100% Nylon Bonded to Neoprene
  • Imported
  • Triathlete Magazine Editor's Choice Award Winner Suitable for all levels. Ironman & USAT approved. Athlete endorsed. Comes in wide range of sizes to ensure a perfect fit.
  • Proven Technology Equals Superior Performance Hydrodynamic neoprene made from Yamamoto #39 with SCS silicone coated SyPrene. 5mm thick core buoyancy panel / 3mm lower legs and back / 2mm arms and shoulders.
  • Exceptional Functionality Full range of motion. Unsurpassed 680 percent flexibility. Highest grade anti corrode internal wetsuit zipper from YKK which greatly reduces drag as you move through the water. Super soft low neck with smoothskin on both sides and because it is so soft, it feels like you hardly have anything around your neck.
  • Maximum Buoyancy - 5mm wetsuit, which is the maximum buoyancy allowed in triathlon wetsuits. Creates nearly double the buoyancy than 3mm suits, which are not recommended for cold waters. Float higher. Move faster. Save energy.
  • Warranty - 2 Year Warranty. Product Registration is required and is only applicable to the original owner of a new wetsuit purchased from Synergy Wetsuits.

Material: 100% Nylon Bonded to Neoprene


Color: Black/Blue


Brand: Synergy


Item Thickness: 5 Millimeters


Sport: Triathlon, Swimming


Closure Type: Zipper


Sleeve Type: Long Sleeve


Age Range (Description): Adult


Size Map: Large


Material: ‎100% Nylon Bonded to Neoprene


Color: ‎Black/Blue


Brand: ‎Synergy


Item Thickness: ‎5 Millimeters


Sport: ‎Triathlon, Swimming


Closure Type: ‎Zipper


Sleeve Type: ‎Long Sleeve


Age Range (Description): ‎Adult


Size Map: ‎Large


Item Package Dimensions L x W x H: ‎16.65 x 13.55 x 3.1 inches


Package Weight: ‎1.61 Kilograms


Brand Name: ‎Synergy


Suggested Users: ‎mens


Manufacturer: ‎Synergy


Part Number:


Size: ‎L2


Date First Available: January 23, 2014


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Aug 31 – Sep 1

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Top Amazon Reviews


  • No fuzz. All very good.
Color: Black/Blue Size: L1
The rarely found no-feel wet suit. No flaws. Just ordered their high end Hybrid, wondering how it can be better than my Endorphine (second model in line of four)
Reviewed in the United States on May 27, 2025 by eduardo slerca

  • Excellent wet suit, fit perfect, lots of buoyancy
Color: Black/Blue Size: L1
Bought this for my first Olympic triathlon and I have nothing but positive things to say. I'm 6' 2" 195lbs, lean body with normal leg / torso ratios for my height. I got the L1 and it fits perfectly. Do yourself a favor and watch the GTN YouTube video for donning a wetsuit. It makes all the difference particularly for swimming range of motion. For range of motion (ROM) this is my first wetsuit so I don't have much of a comparison but I felt a very slight decrease in arm ROM and a moderate amount in knee bending. This all seems normal to me and is improved by pulling extra fabric into around the shoulders & armpits. Overall, I think the ROM is quite good and any issues are offset by the buoyancy. The buoyancy is a game changer though. This is particularly true for your legs. I didn't have any of the leg sinking I've come to associate with sighting in the pool. It really improves your experience and you expend less energy. Overall, the fit was perfect, the material and zipper feel quality, and the buoyancy is a game changer. Highly recommend. I can't imagine what those $1000 wetsuits are really improving enough to justify their price. ... show more
Reviewed in the United States on August 20, 2022 by Amazon Customer

  • Love this wet suit!
Color: Black/Blue Size: L1
I highly recommend this wet suit!
Reviewed in the United States on July 31, 2025 by Charles R Christ

  • Marginal quality, flexible, open water wet suit..
Color: Black/Blue Size: S2
Buyer beware! The supposed 2 year warranty on this wetsuit is complete and utter nonsense. It is supposed to be a 2-year warranty but after 3 months of use, the collar started fraying and peeling and separating from the rest of the wetsuit. I sent in a full warranty request claim to synergy and they came back telling me it is not a defect. I'm very careful with the wetsuit, never dry it in the sun, always store it flat on the floor, never leave it in a hot vehicle, rinse it in wetsuit cleaner every few swims and it still fell apart and is garbage! Do not be lured into a false sense of security with their non-functioning warranty and do not waste $340 on this wetsuit! ... show more
Reviewed in the United States on August 16, 2023 by Jay S. Jay S.

  • Works very good for me,
Color: Black/Blue Size: L3
They delivered a great wetsuit for a fair price. I use it several times a month as I train in open water.
Reviewed in the United States on August 8, 2024 by Dr. Ed Smith

  • Fits perfect!
Color: Black/Blue Size: M2
I have had the sleeveless version for a few years and liked it but wanted to swing to the full sleeve model for colder temps. I was always worried about range of motion with the full sleeve but was really impressed that I noticed no difference. The design and fit is perfect! I’m a 5’9, 165lbs Dad who does Half IM’s for fun. I’m not a V-shaped Olympic athlete. The M2 fits perfect. When I’m at normal 155 race weight I’m sure I could fit in the M1 but the M2 seems almost perfect at both weights. ... show more
Reviewed in the United States on June 19, 2021 by Globemaster 3

  • Terrible smell Not recommend to persons with a sensitive skin
Color: Black/Blue Size: L3
The wetsuit is good, but it has a bad smell. I have a skin etching when wearing this suit. I washed it in a warm soap water, but no effect. How to remove this . Thanks
Reviewed in the United States on August 20, 2021 by Alexander S.

  • Excellent but......
Color: Black/Blue Size: L1
I've had this wetsuit for two years. I rotate it with my Zoot Kona and I go around 4x per week. The pro is that it has better range of motion than my Kona suits and is easier to put on and take off. The con is the neck has come apart after about a year. I took it to a wetsuit repair shop and was a cheap fix. The fix area and the rest of the neck is starting to disintegrate all over. I like this suit for events because it is least restrictive, but not as good overall quality as my Zoot wetsuits at around the same price point. I want to buy another one, but they raised the price and rarely go on sale in sizes bigger than XS and M. I'm an L2. If they drop the price back down a bit I'll consider replacing it. The coldest I've swam with it was 52º F and was comfortable. I guess I can't complain after two years of regular use, but read a few reviews about the neck disintegrating. ... show more
Reviewed in the United States on November 9, 2023 by Rockstar

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