FAQs

What other sizes are available if 24mm doesn't fit comfortably?

Every W1 includes inserts in 15mm, 17mm, 19mm, and 21mm sizes that can be used to achieve a smaller flange fit.

How do I know if I need a different flange size than what came with my W1?

We recommend using our Flange Sizing Guide to learn how to measure your nipple diameter and determine which size is right for you.

What's the difference between this kit and the standard Mother's Nature™ W1 Kit?

Both kits include essential pumping parts for the Mother’s Nature™ W1. The key difference is that the Mother’s Nature™ W1 Pumping Kit includes a 24mm breast shield, while the standard W1 Kit does not.

Can I buy a different shield size separately if 24mm doesn't fit?

Every W1 includes four insert sizes: 15mm, 17mm, 19mm, and 21mm. If the 24mm breast shield isn’t the size you need, try using one of these inserts to find your most comfortable fit.

Still have questions?

Our team of real moms and experts is here to help you every step of the way. Just reach out—we’d love to hear from you.

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