Silicone Collection Cups

What Is It

Silicone Collection Cups are 8 oz / 240 mL in-bra breast milk collection cups for use with compatible electric pumps. They replace the standard flange, connector, and bottle setup by routing suction through the cup assembly and collecting milk inside your bra or shirt. Each kit includes two cups, tubing, membranes, membrane caps, silicone breast shields, valve bases, duckbill valves, and tubing adapters.

Who It’s For

For pumping parents who want a hands-free and mobile way to express breast milk with compatible electric pumps. It is also for moms who need 24 mm and 28 mm breast shields or want kit options with 13 mm, 15 mm, 17 mm, 19 mm, or 21 mm inserts.

Disclaimer! Before purchasing this product, please download our nipple ruler or use your measuring tool of choice.

WARNING! CHOKING HAZARD- keep away from infants and children.

How to Use

You Have Questions, We Have Answers!

How should the collection cups be cleaned?

The parts (minus the tubing and tubing adapters) should be submerged in boiling water for 3 minutes to sterilize them before your first use. Then after each subsequent use, we recommend that you disassemble the collection cups, silicone breast shields, valves, and valve bases, rinse them with cold water, and then hand-wash them in warm, soapy water. They should then be rinsed well and allowed to air-dry on a dedicated rack or clean cloth. Using sterilizers or harsh detergents can warp the delicate silicone pieces and should be avoided. UV sterilization or cold sterilization is acceptable though.

I need help figuring out how to use my collection cups.

What we've found is that there can be a bit of a learning curve when it comes to maximizing milk output and comfort with wearable cups, so please don't hesitate to contact us with any questions or concerns!

Which pumps are compatible?

Please see the "Compatible with" section below for a list of compatible pumps.

How often should I replace the parts?

The Silicone Duckbill Valves should be replaced after 1-2 months, but the silicone membranes that are sold as part of our Spare Backflow Protectors should last around 4 months before needing to be replaced. For best results and longevity of the parts, we recommend that they be boiled once to sterilize them, and then after each subsequent use, we recommend that you hand wash them in warm, soapy water.

Can I steam sterilize the cups?

High heat sterilization methods like a steam sterilizer will most likely cause the silicone parts to wear out faster and you may even see the hard plastic pieces begin to warp.

Which inserts work with the collection cups?

Legendairy offers 15 mm inserts, 17 mm inserts, 19 mm inserts, and 21 mm inserts. If you need smaller, Maymom is available on Amazon from 10-24 mm, Freemie FitMe is available from 15-25 mm and Beaugen cushions reduce by 2 mm or the XS and S flanges from Pumpin Pals fit!

Which parts are silicone?

The breast shield, duckbill valve and backflow membrane are silicone while the valve base, membrane cap and cup are BPA-free plastic.

How do these cups work?

These are used in place of a flange/connector/bottle set up that would be used with the typical pump configuration. These can sit inside your bra/shirt and allow for discreet pumping. No more bottles hanging off of your body! If you use them with a portable pump, you can be mobile AND hands free!

Can your pink duckbills work with the collection cups?

No.

When to Use

Ideal for pumping parents who want hands-free single or double expression with compatible electric pumps. These cups sit inside your bra or shirt and collect milk in-bra instead of using external bottles.

User Manual

How to Assemble

• DUETTE See our hack here!
• AMEDA Mya, Mya Joy, Finesse, Purely Yours, Purely Yours Ultra
• MEDELA Pump in Style Advanced, Pump In Style with MaxFlow, Sonata, Freestyle, Freestyle Flex, Swing Maxi, Swing (Please note: Medela Freestyle™ Hands-free Breast Pump is not compatible)
• FREEMIE Independence, Liberty 
• SPECTRA S1, S2, M1, 9+, 9S, Synergy Gold 
• ARDO Calypso
• EVENFLO Advanced
• MOTIF Luna, Duo
• LANSINOH
• RUMBLE TUFF Serene Express
• PHILIPS AVENT Single Electric
• MOMCOZY Double Electric Portable
• UNIMOM Minuet
• ZOMEE Z1, Z2
• BELLABABY See our hack here!
• BABY BUDDHA See our hack here!

What Is Included In The Box

2 x 8 oz / 240ml Cups, Y-shape tubing, 2 x Silicone Membranes, 2 x Membrane Caps, 4 x Silicone Breast Shields (pair of 24 mm and 28 mm), 2 x Valve Bases, 4 x Duckbill Valves, 2 x Tubing Adapter A, 2 x Tubing Adapter B

Why Ingredients Matter

Our collection cup breast shields are made from food-grade frosted silicone for comfort and safety. The breast shields, duckbill valves, and backflow membranes are silicone, while the valve bases, membrane caps, and collection cups are BPA-free plastic.