Men’s Synergy Endorphin Fullsleeve Triathlon Wetsuit Review

The Men’s Synergy Endorphin Fullsleeve Smoothskin Neoprene Wetsuit for Opening Swimming (Endorphin) is the 2016 Triathlete Magazine Editor’s top choice award winner.

Triathletes love this wetsuit for its buoyancy, comfort, and flexibility.

The suit is constructed of hydrodynamic neoprene, which is made of Yamamoto #39 and #40 neoprene rubber with SCS silicone coated SyPrene. Yamamoto #39 increases the overall durability of the suit while #40 provides the flexibility that allows for a full range of motion.

Swimmers will be able to keep their strokes as close to their natural cadence as possible because the suit doesn’t get in the way.

These materials also help to create excellent buoyancy because of the 23 percent higher closed cell structure of the rubber. It absorbs less water allowing athletes to float high in the water reducing drag and decreasing fatigue.


Check Price on

Men’s Synergy Endorphin Fullsleeve Triathlon WetsuitBuy from Amazon button

The Endorphin has varying thicknesses of material over different parts of the body to maximize movement and buoyancy where it is most needed.

A 5mm core buoyancy panel helps to raise the heaviest part of the body higher in the water. The 3mm material over the lower legs and back give the durability and buoyancy needed to maintain good form.

While the 2mm material over the arms and shoulders is thin enough to retain a full range of motion because of the decreased thickness and increased flexibility of the material. The flexibility prevents the suit from getting in the way while you swim making it feel like a second layer of buoyant skin.

This allows a natural stroke to be used throughout the swim.

To address the issue of corrosion around the zipper, the Endorphin has a high-grade internal anti-corrosion zipper. The zipper is kept tightly against the body reducing any drag while swimming.

Once zipped, the seam of the zipper is completely hidden creating a smooth surface over the back.


The design of the Endorphin also takes comfort into consideration. A soft, low neckline made of smoothskin flexes and moves with your body. It doesn’t choke or constrict your neck during use, which also helps to prevent chaffing.

The neck also features an adjustable Velcro closure for a custom fit at the neck.

A soft inner liner is used for comfort and warmth in cold water. The liner also helps to prevent chaffing in trouble areas such as the armpits, elbows, and knees.

A comfortable wetsuit allows athletes to focus on their form and race without being distracted by physical discomforts.

Triathlon wetsuits need to be taken on and off quickly.

The heels of the Endorphin are cut to allow for a quick transition between the different legs of the race.

With triple stitched, chemically bonded seams and heat taped joints, the Endorphin is built for durability. Water won’t seep in through the seams and friction at the joints is well accounted for.

It also comes in 16 sizes to help triathletes of all sizes and shapes get a good fit.


  • Buoyancy – The features used to create buoyancy in the Endorphin do not disappoint. The panel over the torso gives athletes extra lift out of the water increasing aerodynamics and reducing drag. It produces a noticeable difference in buoyancy helping to shave off seconds or even minutes off of race times.
  • Flexibility – The flexibility is hard to beat. Many found that it feels like a sleeveless suit because of how well the rubber flexes during movement. This freedom of movement allows for the use of proper form, which makes for the best swim times.
  • Warmth and comfort


  • Not for distance – Distance swimmers may be happier with a suit specifically designed for longer races as the Endorphin isn’t designed with 10k races in mind.


Getting the right fit with this suit is made easier using the sizing chart that not only includes height and weight for the right size but also includes body build to help with those that may have a difficult to fit body type.

When using the chart correctly, you’ll find that it is true to size when you take build into account.


The Endorphin is an excellent triathlon wetsuit for beginners and experienced triathletes. It comes at an excellent market value for wetsuit of this quality. Find your size and order the Endorphin today