Asian sizes are notorious for running more compact, so an XXL from an Asian manufacturer could suit more similar to a US XL or even L. On the other hand, guessing is just not great. After that experience, I decided to put together an in depth Gentlemen’s garments size conversion https://xxl-shirt-size32698.wssblogs.com/39752391/the-2-minute-rule-for-xxl-size-in-cm