I'm selling this because I bought it from this site, but it was a bit tight. It was tight for me at around 173cm and 68kg. Here's the information from when I purchased it: 【High-Performance Neoprene】 This wetsuit uses durable and flexible neoprene material, providing a comfortable fit. 【Aerodynamic Design】 The streamlined design minimizes water resistance and improves performance. 【Fit】 Size M, the body-hugging design doesn't restrict movement and supports comfortable riding. - Brand: 2XU - Model: ST-2 - Size: M. ST - Material: Neoprene - Color: Black/Red Manufacturer's Size Chart I felt the actual product was about one size smaller than this. https://jp.2xu.com/pages/size-guide-men-wetsuits