It's Asian size,please check the detail sizer on the size chart image.
4 Sizes available:
Asian S (US XS(4) ,UK 6, AU 8)----Shoulder----40cm/15.6";Sleeve----58cm/22.6";Chest----96cm/37.4";Length----59cm/23.0"
Asian M (US S(6) ,UK 8, AU 10)----Shoulder----41cm/16.0";Sleeve----59cm/23.0";Chest----100cm/39.0";Length----60cm/23.4"
Asian L (US M(8-10),UK 10, AU 12)----Shoulder----42cm/16.4";Sleeve----60cm/23.4";Chest----104cm/40.6";Length----61cm/23.8"
Asian XL (US L(12),UK 14, AU 16)----Shoulder----43cm/16.8";Sleeve----61cm/23.8";Chest----110cm/42.9";Length----62cm/24.2"









