I learned about sizing and elasticity with my first baby, and i swear it is why i can pump so much! I recommend anyone that pumps sizes themselves to get the best output. I love that this kit comes with multiple sizes so you can get the right fit!! #fyp #jessipumps #momsoftiktok #workingmom #viral #momoftwo #momtok #pumptok #breastfeeding #breastmilk #pumpwithme #elvie #elviestride #pumping #lactation