what does mex mean on clothes

On clothing, "MEX" usually indicates that the item was made in Mexico — it's short for Mexico as the country of origin.

You might see it:

• On a label next to "Made in MEX" or "Hecho en México".

• As part of a sizing label if the brand uses multiple country abbreviations, e.g. US M / MEX 40 / EU 50 (meaning US Medium, Mexican size 40, EU size 50).

So it can mean either:

1. Manufacturing location (Mexico)

2. Mexican sizing standard (common for jeans, shirts, and shoes in some brands)