---
product_id: 227749095
title: "Triathlon Wetsuit Men’s Endorphin Full Sleeve Neoprene for Open Water Swimming"
brand: "synergy"
price: "¥184505"
currency: JPY
in_stock: true
reviews_count: 8
category: "Synergy"
url: https://www.desertcart.jp/products/227749095-triathlon-wetsuit-men-s-endorphin-full-sleeve-neoprene-for-open
store_origin: JP
region: Japan
---

# 680% stretch for full motion 5mm max buoyancy core panel YKK anti-corrosion zipper Triathlon Wetsuit Men’s Endorphin Full Sleeve Neoprene for Open Water Swimming

**Brand:** synergy
**Price:** ¥184505
**Availability:** ✅ In Stock

## Summary

> 🌊 Glide like a pro, buoyed by science and style.

## Quick Answers

- **What is this?** Triathlon Wetsuit Men’s Endorphin Full Sleeve Neoprene for Open Water Swimming by synergy
- **How much does it cost?** ¥184505 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/227749095-triathlon-wetsuit-men-s-endorphin-full-sleeve-neoprene-for-open)

## Best For

- synergy enthusiasts

## Why This Product

- Trusted synergy brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Soft Neck Comfort:** Smoothskin low neck design feels barely there, eliminating chafing during long swims.
- • **Drag-Reducing Tech:** Premium YKK anti-corrosion zipper minimizes water resistance for smoother strokes.
- • **Unmatched Flexibility:** 680% stretch fabric ensures full range of motion without compromise on speed or comfort.
- • **Float Higher, Swim Faster:** Max 5mm Yamamoto neoprene core boosts buoyancy to save energy in cold open waters.
- • **Tailored for Every Athlete:** Wide size range and athlete-endorsed fit guarantee a sleek, performance-driven silhouette.

## Overview

The Synergy Endorphin Men’s Full Sleeve Triathlon Wetsuit combines cutting-edge Yamamoto #39 neoprene with SCS silicone coating to deliver maximum buoyancy and 680% stretch flexibility. Engineered for open water triathletes, it features a 5mm thick core panel for superior flotation, a corrosion-resistant YKK zipper to reduce drag, and a soft, smoothskin neck for all-day comfort. Available in a wide size range and backed by a 2-year warranty, this wetsuit is designed to elevate your swim performance while keeping you warm and agile.

## Description

desertcart.com: Synergy Endorphin Men's Full Sleeve Triathlon Wetsuit (Black/Blue, L1) : Sports & Outdoors

Review: Excellent wet suit, fit perfect, lots of buoyancy - 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.
Review: Great - Great item. Keeps me warm in the cold!

## Features

- 100% Nylon Bonded to Neoprene
- Imported
- Suitable for all levels. 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.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B08CMVTCWH |
| Age Range Description | Adult |
| Best Sellers Rank | #173,071 in Sports & Outdoors ( See Top 100 in Sports & Outdoors ) #75 in Triathlon Skinsuits & Wetsuits #136 in Full Wetsuits |
| Brand | Synergy |
| Closure Type | Zipper |
| Color | Black/Blue |
| Customer Reviews | 4.3 out of 5 stars 101 Reviews |
| Included Components | No other components included |
| Item Thickness | 3/2 millimeters |
| Manufacturer Part Number | 738435498009 |
| Material | Neoprene |
| Model Number | 738435498009 |
| Number of Items | 1 |
| Size Map | Large |
| Sleeve Type | Long Sleeve |
| Sport | Triathlon, Swimming |
| Sport Type | Triathlon, Swimming |
| Unit Count | 1 Count |
| Warranty Description | 1 year warranty |
| Wetsuit Form Type | Full Body Suit |

## Product Details

- **Age Range (Description):** Adult
- **Brand:** Synergy
- **Closure Type:** Zipper
- **Color:** Black/Blue
- **Item Thickness:** 3/2 Millimeters
- **Material:** Neoprene
- **Size Map:** Large
- **Sleeve Type:** Long Sleeve
- **Sport:** Triathlon, Swimming

## Images

![Triathlon Wetsuit Men’s Endorphin Full Sleeve Neoprene for Open Water Swimming - Image 1](https://m.media-amazon.com/images/I/61RPBCh-CjL.jpg)

## Available Options

This product comes in different **Size, Style** options.

## Questions & Answers

**Q: With help I can get the zipper up.... without help it's almost impossible.  It feels very tight but not restriction of movement.  Is it too tight?**
A: I'm 5-9 171 lbs and my M1 is fitting very snugly these days. It is very difficult to get the zipper up sometimes. I pull the crotch up so high it feels like its cutting into my balls. I bought this suit at 45 yrs old and now I'm 50. I'm 3 pounds heavier at 50 when i look back at my weight tracking apps I have used for many years. I just ran the LA marathon in March too so I think I need a new suit and an M2 is probably what I need based on their size chart. I'm going to try the zipper up a bit to see if that works. I also have a very wide back and I may have added some bulk in my lats who knows, but it's never been this difficult to get the zipper up. LOL!!!

**Q: I’m 5’8 and 150 is S3 the right choice or m1?**
A: You do not want it too loose, I would lean S3. It will be tight to put on the first time but mine then formed to me. They have great customer service and should it not fit they will help you exchange very easily.

**Q: I am 5’9 and 162 pounds male. What size would you recommend?**
A: From the sizing chart looks like M1. The chart i found to be very accurate. But even if you need to exchange, they are very customer focused and will easily help you get one that fits. You can't go wrong.

**Q: 5'10 175.  I got the M2 but its tight.  Will it loosen up or should I go bigger?**
A: Our sizes are significantly based on weight and are intended to fit snugly. Based on your current weight, the M2 should be your recommended size.  It could feel tight because the neoprene hasn't conformed to your body yet.  We usually recommend fitting it 4-6 times to make sure that the rubber settled on your body.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Excellent wet suit, fit perfect, lots of buoyancy
*by A***R on August 20, 2022*

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.

### ⭐⭐⭐⭐⭐ Great
*by N***D on November 30, 2025*

Great item. Keeps me warm in the cold!

### ⭐⭐⭐⭐⭐ Size matters
*by R***E on August 20, 2025*

Amazing fit. Best wet suit I've had

## Frequently Bought Together

- Synergy Triathlon Wetsuit Men’s Endorphin Full Sleeve Neoprene for Open Water Swimming
- Synergy Swim Cap - Neoprene Smoothskin Swim Hood
- Synergy Swim Socks Neoprene Swim Booties

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*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-08-29*