Size------Back-------------Chest-------------Neck
XS----20cm/7.87------28cm/11.02-----20cm/7.87
S-----25cm/9.84------34cm/13.39------23cm/9.06
M----30cm/11.81-----40cm/15.75-----27cm/10.63
L-----35cm/13.78-----46cm/18.11-----32cm/12.60
XL----40cm/15.75-----53cm/20.87-----35cm/13.78
XXL---45cm/17.72-----59cm/23.23-----40cm/15.75