Choosing the Right Breastshield Size for You
A size M PersonalFit Breastshield is included in all Medela personal use pumps. However, every woman is unique and one breastshield does not fit all. This is why Medela offers a range to allow mothers to choose exactly the right size. Figure A on the right shows a breastshield that is the correct size. The example in figure B is too small and the one in figure C is too large. In order to ensure maximum comfort and efficiency while expressing milk, mothers can choose between five PersonalFit Breastshield sizes: S (21mm), M (24mm), L (27mm), XL (30mm) and XXL (36mm).