haakaa Silicone Breast Milk Storing Bag(9 oz- Reusable Breastmilk Storage Freezer Bag for Breastfeeding Mom - Self Feeding Baby Food Pouch Container Leakproof https://a.co/d/j4XlVjx these worked great for breast milk after pumping. it says you can freeze in these but I had one bag rip after freezing it. I recommend using this only for the fridge milk.