• Lower Price

  • 2 year warranty

  • Less Waste

0

Shopping cart

There are currently no items in your shopping cart.

    Philips Support

    How do I choose the correct breast shield or nipple insert size?

    Published on 30 March 2025

    Choosing the right size breast shield and nipple insert for your Philips Avent Hands-free Electric Breast Pump is crucial for a comfortable, pain-free pumping experience that supports efficient milk expression.

    Try using one of the interactive tools below to help find the size that works best for you.  

    Take your time and measure your nipple carefully. Choosing the correct size will help you express milk comfortably and efficiently.

    We highly recommend measuring your nipple multiple times, especially if you've recently given birth, as nipple size changes during pregnancy and throughout your breastfeeding journey.

    After measuring and choosing your size, watch the "Checking your fit" video to make sure that the breast shields/inserts you've selected fit and that you're wearing them properly.

    Sizing video

    Watch this video to learn how to measure your nipple and choose the right breast shield/nipple insert size.

    Play Pause

    Digital sizing tool

    Use this helpful online tool to guide yourself through the sizing process step-by-step.

    Checking your fit

    Watch this animated guide before pumping to make sure that your breast shields and inserts fit correctly.

    Play Pause

    Additional sizing information

    The pump comes with 21 and 24 mm breast shields, and a 19 mm nipple insert.

    If the inserts and breast shields that came with your pump don't fit, you can purchase a separate pack of 15 and 17 mm inserts for smaller nipples, and another with larger 28 mm breast shields and a 26 mm insert for mums who need bigger sizes.

    Our full range of inserts and shields covers nipple sizes from 11 to 27 mm.

    Check the following table to help choose the correct size of shields or inserts based on your nipple size.

    Note: Using an insert is optional but recommended for achieving a proper, comfortable fit.

    Nipple sizeBreast shield and/or nipple insert size
    11-12 mm21 mm shield (+15 mm insert) 
    13-14 mm21 mm shield (+15 mm insert) 
    15-16 mm21 mm shield (+17 mm insert)
    17-18 mm21 mm shield (+19 mm insert)
    19-20 mm21 mm shield
    21-23 mm24 mm shield
    24-25 mm28 mm shield (+26 mm insert)
    26-27 mm28 mm shield

     

    Go to www.philips.com/support to purchase more breast shields and inserts.

    Note: Shield and insert sizing and availability may vary between countries and regions.

    Need more help?

    If you're still struggling to find the right size, try using the cardboard sizing tool included in the box with your pump, or contact the Philips Consumer Care Centre in your country for assistance.

    Contacting Philips

    We are happy to help you

    Contacting Philips

    We are happy to help you

    Looking for something else?

    Discover all Philips Support options

    Our site can best be viewed with the latest version of Microsoft Edge, Google Chrome or Firefox.