Milk Bags

Milk Bags

Milk Bags


BPA free* and food safe* for baby. Spill proof for sanity. Our 4 oz. disposable Milk Bags feature a one-way valve so milk goes in and doesn’t come out. Tuck a fresh bag inside Willow™, pump, and then pour it or store it. They’re also fridge and freezer safe to help your supply stay fully stocked.


  • 4 oz. Milk Bags
  • BPA Free* & Food Safe*
  • Spill Proof, Disposable & Recyclable

* All material that comes in contact with breast milk is BPA free and food safe.

Willow is in Beta. Learn more about the Willow Pump and our Beta Program.

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