Fulfilled by our friends at PackIt. PackIt's Baby Bags are Perfect for Mom on the Go PackIt’s Freezable Breastmilk & Formula Cooler is the first built-in cooling bag with no ice packs needed. Take the stress and worries out of storing breastmilk or formula for your baby. This unique cooler is the ideal solution for moms on-the-go to keep the breastmilk and formula chilled for hours. It chills up to four (4) 5oz breastmilk and formula bottles (depends on brand and size of bottle). Bottles are not included. PackIt’s Freezable Breastmilk & Formula Cooler fits (4) Medela breastmilk bottles. The secret is PackIt’s patented cooling technology. Freezable gel is permanently built into the breastmilk and formula cooler bag so you’ll never need to buy separate freezable ice packs or gel packs again! It is easy to use. Simply flatten and freeze overnight (12 hours), then pack when ready to go. For additional storage space, flatten the freezable divider. Easily identify your bag with a clear pocket for name and date card. A zippered closure locks in cool, dry air and a handle easily clip onto totes, backpacks or strollers. This soft breastmilk and formula cooler bag is made from nontoxic poly canvas and has a food-safe, water-resistant lining. Like all PackIt products, the Freezable Lunch Bag is made from PVC-, BPA-, phthalate-, formaldehyde- and lead-free materials. PackIt's Freezable Breastmilk and Formula Cooler is portable and measures 8 inches wide, 5.5 inches tall and 6.5 inches deep. . Simple care: wipe thoroughly or hand wash the interior and spot clean exterior; allow bag to dry completely before freezing. Not machine or dishwasher safe. Bottle ARE NOT included. This item only ships within the United States.