The Fraupow Flange is a traditionally shaped shield made of soft food-grade silicone making it more comfortable and non-abrasive. While comfort is often the main focus in figuring out the right size for your breast, using the correct sized Flange will also make your pumping more efficient.

Having an unfitting shield may impact the amount of milk you are able to pump. Its good to keep in mind that the right breast shield size may change over the course of your pumping and nursing journey, so its a good idea to check occasionally you are still using the right size. Or you might find that your breasts need different shield sizes. The 24mm is recommended if your nipple measures 20-22mm in diameter and the 27mm is recommended if your nipple measures 23-25mm in diameter.