1. Choose according to your measurement and not according to your country's size. 

2. A: Underbust: measurement below the bust line, from the front around the                chest.                                                                                                                        B: Bust: Measurement of the fulles part of the bust, around the chest.

 3. Bra Size (cupsize): The difference between the Bust (B) and underbust (A)             e.g.: Underbust=75 cm and difference=12 cm ( cup size: B ) > Choose Size:M