Bust:

Measure the fullest part of your bust. Don't follow your bra size. Follow circumference of your whole bust - all the way around. Sizes correspond to your bust or Belly whichever is bigger.
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                                                                  Size                         -             Chest in Inches
                                                                  -------------------------------------------------------
                                                                   XS                      l                             34                         
                                                                   S                        l                             36
                                                                   M                        l                            38 
                                                                   L                         l                            40 
                                                                   XL                       l                            42 
                                                                   2XL                     l                            44 
                                                                   3XL                     l                            46