Usually 7-12 days delivery to CA, tracking number will be provided! Expedited shipping 3-5 days delivery.Corsets are sized by waist size. So please choose your corset according to your waistline. not your bust. If you have any question about the size, please contact us.Dawafa Women's Corset Size ChartS /Bust: 31-33inch Waist: 23-25inchM /Bust: 33-35inch Waist: 25-27inchL /Bust: 35-37inch Waist: 27-29inchXL /Bust: 37-39inch Waist: 29-31inchXXL/Bust: 39-41inch Waist: 31-33inch3XL/Bust: 41-43inch Waist: 33-35inch4XL/Bust: 43-45inch Waist: 35-37inch5XL/Bust: 45-47inch Waist: 37-39inch6XL/Bust: 47-49inch Waist: 39-41inch