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📦 Breast pump on pre-order - Shipping mid-August! ⚠️⚠️⚠️

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Non-return membranes x2

€5,90
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Material: BPA-free PP · Transparent

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Wear part to be replaced regularly

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Compatible with LUPA breast shields and the Asymétrie breast pump

Sold in pairs

💨

Optimal suction

🌿

Soft silicone

🫶

Sold in pairs

Description keyboard_arrow_down
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The membrane is the flexible silicone part that creates the rhythmic suction movement of the breast pump. It is placed in the backflow protector.
It works with every cycle, every session. Subject to intensive use, it changes over time, and a worn membrane directly means less pumping efficiency.
A consumable to be replaced regularly.

Features keyboard_arrow_down
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Material: BPA-free food-grade silicone
Dimensions: 5.5 x 5.2cm
Weight: 4.4g
Color: pink

Compatible with the LUPA pumping kit

Recommended replacement frequency keyboard_arrow_down
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Exclusive Pumping (EP): monthly
Occasional Pumping: every 4 to 8 weeks

In all cases: replace as soon as you notice a loss of flexibility, deformation, or cracks.

Shipping & returns keyboard_arrow_down
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Delivery within 3 to 5 business days
Returns possible within 14 days, see our return conditions here

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Why are membranes essential?

Ensures regular and effective suction

Ensures a smooth and efficient draw

Central to the operation

Determines the drawing's effectiveness

Need help?

Our team will respond to you within 24 business hours

Frequently Asked Questions

How to tell if my diaphragm is worn out? keyboard_arrow_down
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Loss of flexibility, deformation, cracks, or an unexplained decrease in suction power. Plan for replacement based on your pumping frequency.

How to clean the membranes? keyboard_arrow_down
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Wash in hot soapy water after each use, or steam sterilize. Air dry before reassembly. Do not use sharp utensils.

Your (ever-so) sweet words

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    Gaëlle

    These two small breast shields saved my breastfeeding journey and, most importantly, allowed me to transition to hands-free pumping. Being braless and having my hands free while pumping completely changed the game. Not to mention the comfort, which is unmatched by other types of breast shields. With the LUPA shields, I've even dozed off during a pumping session without fear of them detaching.

    01/06/2026

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    Anaïs

    Since returning to work, the old models were a daily struggle, especially when trying to find suitable bras. With your product, everything is simpler: comfortable, practical, and easy to integrate into my routine. I use it everywhere and very often, which shows how much it simplifies my life. Thank you for this quality!

    23/01/2026

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    Matilda

    Initially, I had a lot of trouble getting them to stay put, but with the right size, it really works.

    The silicone is very comfortable and I have both hands free during pumping. Drainage is fast and efficient, I recommend these breast shields to all pumping mothers.

    03/12/2026

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    Emma

    As you know, my pumping journey was intense (it's almost over now) and the Lupa truly helped make it easier. The simple fact of not having to wear a pumping bra, especially for night pumping sessions, makes a huge difference. And the comfort! Thank you for creating these gems and for allowing me to benefit from them on the other side of the world 💜

    04/24/2026

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    Thea

    I can only recommend LUPA 🐺💜

    Finally hands-free, more comfortable and truly optimized pumping! They clearly helped me continue after returning to work. Once you get the hang of it, it's a real joy. Big plus: they also adapt to manual and hospital breast pumps.

    29/04/2026

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    Aurélie

    I wouldn't go back for anything. LUPAs are incredibly effective: comfortable, practical, and beautiful too. They have completely changed my daily life and made pumping so much simpler and more enjoyable. You can tell they were carefully thought out. Thank you for imagining and designing these true little gems 🐺💜

    05/02/2026

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    Maëlle

    I received my flange inserts 2 days ago and I'm already won over! I pump almost double in half the time, without massages or compressions like before. Finally, comfortable, hands-free pumping, even at work behind my computer 😊 Frankly, I should have bought them sooner... Thank you for this incredible invention 😍

    03/05/2026

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    Maureen

    One word: magical ✨

    I regret not having known about LUPA sooner! I hesitated for a long time before ordering, thinking it was mostly marketing... and yet, from the very first try, I pumped 100 ml more. A real gain in comfort and efficiency every day. I recommend it with my eyes closed 🐺💜

    05/04/2026

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    Léa

    These breast shields are a real game-changer 🐺💜

    Super comfortable, easy to use, and above all, much more effective than anything I had tried before. My pumping sessions have become much more pleasant, quicker, and so much less restrictive in my daily life. Honestly, I couldn't do without them now!

    05/05/2026