Pumpin’ Pal: 25 Years Ahead of the Research in Flange Sizing Innovation
For over 25 years, Pumpin’ Pal has been pioneering a better way to fit pumping parents — long before “evidence-based flange sizing” was a buzzword. From the very beginning, we’ve known that comfort, milk flow, and the body’s natural response are what truly matter — not just a tape measure.
Now, the science finally agrees.
The Research Has Caught Up
A new study by Jeanette Mesite Frem, published in 2024, supports a groundbreaking, evidence-based approach to flange sizing — one that aligns perfectly with what we at Pumpin’ Pal have been championing for decades.
The Jeanette Mesite Frem Study confirms that effective flange fitting should prioritize:
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Comfort over numbers
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Milk flow and efficiency over tight measurements
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An individualized, body-led approach
In other words, it validates what our customers and lactation professionals have known all along: the best fit isn’t just about size — it’s about how your body responds.
We’ve Been Doing This All Along
While some companies are just now adjusting their sizing systems, Pumpin’ Pal has offered multiple flange sizes ranging from 10mm to 40mm for over two decades. Our founders developed the OptiFit™ System to make fitting more flexible, intuitive, and mom-centered — long before there was published data to back it up.
Our 3-size OptiFit™ Pack is designed to let you test and discover what your body prefers. And unlike others that only cover 3 millimeters of difference per set, our system spans 12mm per pack, giving you a broader range to find your best fit — without overpaying for multiple sets.
And if you find that your perfect size falls outside that range?
We’ll send you the next size — anywhere from 10mm to 40mm — free.
Because your comfort and milk flow matter more than a number.
Why Pumpin’ Pal Leads the Way
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🍼 25 years of innovation — trusted by IBCLCs, WIC programs, and moms worldwide
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🧠 Backed by emerging research — confirming our long-standing, experience-driven approach
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💡 OptiFit™ System — flexible, body-led, and supported by lactation science
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🌎 Inclusive sizing — 10mm through 40mm, covering every body
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💕 Mom-first philosophy — we prioritize your experience, not arbitrary measurements
Be Part of the Future — Backed by 25 Years of Experience
Science has finally caught up — but Pumpin’ Pal has been here all along, leading the way in comfort, innovation, and lactation-informed design.
Discover the system that started it all — and is now scientifically validated.
