Zip Top has designed the world's FIRST reusable 100% platinum silicone breast milk storage bag - better for your baby and the earth! Endlessly reusable, the breast milk storage bag stands up, stays open and zips shut with convenient pour corners and a surface you can write on. The plastic-free milk bags contain no BPA, lead, PVC or phthalates making them a safe option for your baby. All Zip Top products are dishwasher and freezer safe and are easy to sterilize. Zip Top is proudly designed and manufactured in the USA. Includes: two reusable breast milk storage bags.