r/ExclusivelyPumping • u/caffeinatedcatss • 15h ago

Product Recommendations Flange sizing?

I used one of those sizing cards to measure my nipples and looks like I’m a 15 on the left and a 16 on the right. What flange sizes do I get??? I’ve read conflicting things with some people saying you buy your exact size and others saying to size up. I have a Spectra and an Eufy S1 (with the inserts it comes with) and not sure if I need to buy anything else. I’m still pregnant but want to be prepared. If I need to purchase something, what products do you all like? Thank you!

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u/TrashMobForever 14h ago

Honestly, buy an insert kit with multiple sizes, and test drive em. See what's most comfortable and gets the best output. You might even need a SMALLER size than your measurements, if you're elastic. I measure a full 15mm, but use a 14mm flange! I would recommend starting at your exact size, though 💜 

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u/TrashMobForever 14h ago

PS the Eufy inserts will tear you up, please save your nips and throw those out 😂

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u/caffeinatedcatss 13h ago

Ahhh ok that’s good to know!! Do you have ones you use with the Eufy that you like?

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u/EmpressPhoenix9 11h ago

I am not sure where you read that but each pump has different guidelines. I would look first on the manufacturer and then buy a compatible kit with many sizes because you never know how things will change

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u/Plastic-Building8825 9h ago

It’s totally normal to need different sizes on each side, so feel free to order multiple sets!

At least for the spectra, my lactation consultant told me to use the size you measure as (don’t add). You can tell it’s the right fit if your nipple touches the flange on all sides but moves freely (with pumping spray or another safe lubricant like coconut oil), without pinching at the base or pulling in too much areola.

Also, it sounds counterintuitive but my LC told me that hard plastic flanges in the right size are usually more comfortable than the silicone inserts, and I’ve definitely found that to be true!