Dear Friends:
<br />    This is Asian size ,smaller than EU ,UK ,US,AU size. 
<br />  Pls measure the chest ,shoulder width of the clothing you are wearing now,and compare with the size chart here. it is better to choose a little larger .
<br />  * some EU buyer friends suggest that need order 2 sizes up ,for example if you wear size S in EU or USA size , you need buy size L here. 
<br />    Both men and women can wear it.
<br />  
<br /> 
<br />SIZE  Total Length Shoulder Width Chest 
<br />    cm   cm   cm 
<br />S  63  38  86 
<br />M    64  39  92 
<br />L  64  40  97 
<br />XL  67  42  100 
<br />XXL  69  44  104 
<br />
<br />Margin 0f error: ±2cm   1 cm = 0.3937 inch