I'm afraid that you regard the size as Euro Size and US Size.please do not follow system size chart !!!<br /> if you want make a very correct choice you should choose by the size chart at the Second image !!!<br /><br />>available: XS、S、 M、 L、<br /><br />>ASIA SIZE Shoulder / Chest/ Length / Sleeve<br />   XS:         41cm/  100cm/   67cm/  63cm<br />    S:        43cm/  104cm/   68cm/  64cm<br />    M:       45cm/ 108cm/    70cm/  65cm<br />    L:      47cm/ 112cm/    71cm/  66cm