It's Asian size,please check the detail size on the following size chart. 
<br />M Shoulder 39cm  15.2" ) Bust 93cm (36.3") Length 61cm (23.8") Sleeve 57cm 22.2"  
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<br />L Shoulder 42cm  16.4" ) Bust 97cm (37.8" )Length 63cm (24.6" ) Sleeve 60cm  23.4" 
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<br />XL Shoulder 45cm  17.6" ) Bust 101cm (39.4") Length 65cm (25.4" ) Sleeve 62cm 24.2" 
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<br />XXL Shoulder 47cm  18.3" ) Bust 105cm (41.0" )Length 67cm (26.1" ) Sleeve 65cm  25.4" 
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<br />100% Brand New
<br />Net Weight: 400g
<br />Two Color : White, Black
<br />Material: Poly-Cotton Blends
<br />Style: Blouse