Dear CurvyE, Hello and thank you for your excellent question. Breast implant sizing is a combination of current versus desired breast size, chest wall and breast measurements, and skin and subcutaneous tissue quality. Saline implants can, in general, be overfilled by approximately 10%. This allows you to have a higher-projecting implant, that still fits your frame. However, there are disadvantages to this. Overfilled implants can be more visible, can thin your skin, and produce more rippling than a standard fill implant. It is best to answer your question during a face-to-face evaluation, when you can discuss your goals and expectations for the procedure, and you can have a physical examination to evaluate for that procedure. Preoperative visualization with Crisalix can simulate what your body will look like after surgery and can help you make your decision. I recommend that you find a board-certified, or board-eligible plastic surgeon with whom you are comfortable. Be sure to have all of your questions answered during a face-to-face meeting with your surgeon, and review before and after pictures of similar patients whom have had this procedure. Good luck! Best, Jon Ver Halen, MD FACS Harvard educated plastic surgeon Double Board Certified Plastic Surgeon