• Only 3 Parts

    Laundry. Dishes. Kids. You’ve got enough to wash! The last thing you want to do is spend more time washing your pump parts. Slim Cups are slimmed down to only offering three parts, leaving you more time for snuggles and cuddles.

  • Easy to Clean

    Dishwasher-safe components simplify the cleaning process, saving you time and effort.

  • Durable and Safe

    Made from high-quality, BPA-free materials to ensure safety for you and your baby.

  • Discreet Design

    The low profile, ergonomic design ensures the cups fit discreetly under your clothing, allowing you to pump confidently and privately. 

Effortless Pumping.

Anywhere. Anytime.
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  • Only 3 Parts

  • Easy to Clean

  • Durable and Safe

  • Discreet Design

Here's What You'll Get

  • Collection Cup x2
  • 15/17mm or 19/21mm Breast Shield/Flange x2
  • Silicone Diaphragm x2
  • Tubing x2
  • Tubing Adapter x2
  • Brush
  • Drying Bag
Shop Slim Cups

For All Different Shapes and Sizes

We know that size matters when it comes to maximizing your output. That's why Rumble Tuff Slim-Cups come in four sizes to meet your needs,15/17mm and 19/21mm.Need to purchase another size separately, we got you! Our hard plastic cup flanges are sold separately as well.

Confused on which size would work best for you or need help with a free, personalized fit? Use our guide below or schedule time with one of our IBCLCs!

Check your flange size

Personalized Pumping Support

At Rumble Tuff, we understand that every parent’s breastfeeding journey is unique. That’s why we offer personalized 1:1 lactation support for all our users. Whether you need help with your pumping technique, adjusting to the Slim-Cups, or any other breastfeeding concerns, our lactation consultants are here to support you every step of the way.

Meet Your Perfect Pumping Companion

Wish your current pump was hands free? Want to pump more on the go? We’ve got you! Rumble Tuff Slim-Cups offer a seamless, hands-free pumping experience. These innovative cups fit comfortably in your bra, allowing you to move freely and go about your day while you pump.

* Easy * Discreet * Simple

Can I Use Slim-Cups with My Breast Pump?

Our Slim-Cups are compatible with a wide range of breast pumps, making your pumping journey flexible and convenient! From Medela to Spectra, Ameda to Lansinoh, we've designed our cups to work seamlessly with most popular breast pump brands. Whether you're using a hospital-grade pump or a portable electric model, chances are we've got you covered.

Check Compatibility

What's the difference? Go-Cups or Slim-Cups

Choosing between Go-Cups and Slim-Cups? Here’s what you need to know! Go-Cups offer a larger 8 oz capacity with 4 easy-to-clean pieces, perfect for moms who need to pump more at once. Slim-Cups, on the other hand, provide a compact 5 oz capacity with just 3 pieces, making them the go-to choice for parents looking for a lower-profile, lightweight option. Both are designed for hands-free convenience, so you can pump confidently on the go!

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