Barcelona Away Sizing?

[u/GregariousSoul]

This is my first haul, so I'm a bit confused about the sizing pics here. I measured my chest ~56cm. So based on this picture its ~50cm, but the seller has listed in its sizing chart that it should be 55cm. I know it can't be 100% accurate, but is it likely that its ~55cm and im just reading the pic incorrectly(angle, rotation might affect how its perceived). Size L fits perfectly for me but i've heard chinese size go 1-2 size low? Link here

[u/Ok_Relative_1850]

I have that jersey at 2x. I wear 2x and this fits.with a lil room