I was really happy to see they are offering sizing inserts now. Even if you don’t need to size down the flange, I feel these offer more comfort during pumping, especially for anybody with elastic tissue.

I love that these have the size included on them as I fluctuate and am constantly rotating my inserts. I had to write the sizes with sharpie on my other pump inserts and have to always redo it because the sharpie washes off after a few washes.

I was having issues with leaking and thought maybe the flange was too big. Customer service was excellent and followed up multiple times to fix the issue. The flange inserts were exactly what I needed and have been great.

I had to go up a size and I’m glad I did. The inserts are great to create a better seal and feel more comfortable, get better output, and keep the pumps stable. Measurement is important, don’t skip it!! After measuring, make sure you check the corresponding flange size. I recommend measuring at the end of the second trimester or third trimester.

Perfect fit. I used the sizing guide included with the pump and the inserts I ordered fit perfect.