短袖尺码：S M L XL

 欧码S（亚码L）:  适合身高165到170上下不胖的，偏胖的要M

 欧码M（亚码XL）：适合身高175上下不胖的 偏瘦可以要S，偏胖就L

 欧码L（亚码XXL）：适合身高180上下不胖的偏瘦可以要M，偏胖就XL

 欧码XL（亚码3XL）：适合身高185及以上的    体重200斤也可以穿
Short Sleeve Size: S M L XL
  Ouma S (sub-code L): 165-170 for height up and down is not fat， too fat to M
  Ouma M (sub-code XL): 175 up and down for height slim fat can not be S， overweight on L
  Ouma L (sub code XXL): height 180 up and down for no fat can be slim M， XL overweight on
  Ouma XL (sub code 3XL): 185 for height and weight over 200 pounds can wear