The goals are circumference goals. The goal "over shoulder" is measured from right below the chest at the front  - above the shoulder and to the same place on the back

SizeChestWaistOver Shoulder
XS90-96 cm85-90 cm84-88 cm
S96-102 cm91-97 cm89-95 cm
M103-110 cm101-107 cm95-99 cm
L108-114 cm107-113 cm99-105 cm