That is Asian measurement 1cm=0.39inch 1inch=2.54cm Measurement(cm): S: Bust 98 cm Size 65 cm Sleeve 57 cm M: Bust 100 cm Size 66 cm Sleeve 58 cm L: Bust 104 cm Size 68 cm Sleeve 59 cm XL: Bust 110 cm Size 69 cm Sleeve 60 cm XXL: Bust 114 cm Size 70 cm Sleeve 61 cm XXXL: Bust 118 cm Size 71 cm Sleeve 62 cm with the distinctionwithin the measurement technique, please permit 1-2cm in measurement deviation.