If you are a medium, and you are below 1.7m we recommend you opt for the S-M size. If you are a medium and you are above 1.7m we recommend you opt for the M-L size.
If you are a medium, and you are below 1.7m we recommend you opt for the S-M size. If you are a medium and you are above 1.7m we recommend you opt for the M-L size.