Size is in Asian/Chinese version, probably 2 size smaller than Russian/ European/ U.S/U.K size,i suggest choose 2 size up than usual..
Height 166 cm, Weight 55 kg = Asian size L fits
Height 172 cm, Weight 73 kg = 2XL fits
Height 180 cm, Weight 80 kg = 3XL fit =RU 50
M:Shoulder 46cm, Chest 106cm,Sleeve 62cm,Length 67cm =US size XXS
L:Shoulder 48cm, Chest 110cm,Sleeve 63cm,Length 68cm =US size XS
XL:Shoulder 50cm,Chest 112cm,Sleeve 65cm,Length 70cm =US size S
XXL:Shoulder 51cm, Chest 116cm,Sleeve 67cm,Length 72cm =US size M
XXXL: Shoulder 53cm,Chest 120cm,Sleeve 69cm,Length 73cm =US size L
4XL: Shoulder 54cm,Chest 124cm,Sleeve 70cm,Length 74cm = US size XL