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Holds 8 oz of breast milk
Leak-proof, double-zip seal for security
Self-standing base and pour spout
Pre-sterilized and BPA/phthalate-free

Willow Breast Milk Storage Bags

Size	8 oz - Pack of 100 Clear

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First Delivery: March 11, 2026 - March 12, 2026

Save 10% now on 1st Autoship*, 5% on repeat orders

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(10% off first Autoship order*)

$15.90

Holds 8 oz of breast milk
Leak-proof, double-zip seal for security
Self-standing base and pour spout
Pre-sterilized and BPA/phthalate-free

About Willow Breast Milk Storage Bags

The Willow Breast Milk Storage bags are durable, leak-proof, and made with a self-standing base and spout for easily filling, pouring, and storing in the fridge or freezer.

Key Benefits & Features

Willow Breast Milk Storage bags holds 8 oz of milk
Leak-proof, double-zip seal for durability
Self-standing base for easy milk transfer. Willow milk storage bags can be stored in the refrigerator or freezer, and easily labeled with a marker or ballpoint pen
Designed with pour spout for easy milk transfer to a bottle
Pre-sterilized with a tamper evident, tear-away top
Made without BPA or phthalates

Willow Breast Milk Storage Bags FAQs

How many ounces of breast milk do the bags hold?

The bags hold 8 oz of breast milk.

Can I put the milk bags in the freezer?

Yes, milk bags can be stored in the freezer for up to 6 months.

Are the milk bags leak-proof?

Yes, the milk bags feature a leak-proof double-zip seal for durability and peace of mind.

Can I use the milk bags with the Willow 360?

If you are pumping into containers, you can transfer your breast milk into these breast milk storage bags. You can also pump directly into the 100% leak-proof 360 milk bags that are designed specifically for the Willow 360 pump. The 360 milk bags are self-sealing and ready to store when removed from the pump.

How should the breast milk bags be stored and labeled?

You can use a ballpoint pen or permanent marker to label the milk bags with the date, time, and amount pumped.

What is the best way to thaw a breast milk storage bag after it’s been frozen?

Milk bags can be thawed in the refrigerator, under a stream of warm water, or by being placed in a bowl of warm water. Never microwave breast milk! Fully defrosted milk bags can remain in the fridge for up to 24 hours, or at room temperature for two hours, before being used.