We have a detailed measurement guide specifically designed to help moms with this common concern.
(https://momcozy.com/pages/size-guide-all)
After purchasing your breast pump, you can use the "NIPPLE MEASURE TOOL" included in the packaging to measure and confirm the appropriate flange size.
Please pay special attention:
Your nipple size might change slightly before and after pumping (it usually gets a bit larger after pumping).
Therefore, we recommend measuring at the beginning of your pumping session or shortly after to ensure you choose a flange size that best fits your current state, preventing discomfort or affecting pumping efficiency due to an improper size.
