I'm afraid that you regard the size as Euro Size and US Size.please do not follow system size chart !!!
if you want make a very correct choice you should choose by the size chart at the Second image !!!

>available:XS，S，M，L，XL，XXL，

SIZE Shoulder Chest Length Sleeve
XS 39 98 60 60
S 41 100 62 61
M 43 102 64 62
L 45 106 68 64
XL 46 108 70 66
XXL 47 110 72 67

Size Attention:

The item we sell are in Asian size ， usually 1-2 size smaller than Euro size!!!
so we suggest if you want make a correct choice you should choose by size chart!