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Maymom Breastshields Kit for Medela Freestyle, One pair (3 Sizes)

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Product Description

This kit allows you to use Maymom breast shields with your Medela Freestyle Breast Pump. 

  • Single one-piece design-sturdy, no seams for leaking air
  • However, it might NOT be a best for fit for some home-made hands free bra (We recommend that you use Simplewishes Hands Free Bra with this kit).
  • Includes Maymom backflow protectors to maintain your pump a closed system
  • Compatible with Medela Freestyle Breast Pump (use with your Medela Freestyle Tubing)
  • BPA free
  • For use with original Medela bottles or any other standard sized milk bottles
  • Complies with US FDA standard as class II medical device


  • 2x Flange
  • 2x Valve
  • 4x Membrane
  • 2x Backflow Protectors
  • 2x Size Changers

 Size Chart

 Nipple diameter after a pumping session

Nipple Diameter Size
12-14 mm 15 mm
14-16 mm (Nipple length 8-15mm)  17 mm
16-18 mm (Nipple length 8-15mm) 19 mm

How to choose the right size of breastshields for you?

 The inner diameter of the breastshield (B) should be 1-2 mm larger than the diameter of your nipple (N). AFTER a pumping session or 3-5 mm BEFORE a pumping session.  You should be able to see free movement of your nipple during pumping and there should be little or no suction of the areola into the tunnel of the breastshield.


When it comes to pumping comfort, every millimeter counts.  That is why we design a series of breastshields of small increment sizes.  

How to measure the diameter your nipple?

Download the nipple caliper file, print it out, cut through the red line, fold along the green dots then you have made yourself a nipple diameter measuring tool!  See below for the finished ruler.

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