The Willow Portable Breast Milk Cooler holds up to 16 ounces of breastmilk. (That's 3-4 pumping sessions' worth of milk on average.)

You can put the stainless steel Cooler vessel and the Lid with Handle into the dishwasher. We recommend hand-washing the Ice Pack.

For optimal results, put ice pack in freezer for at least 8 hours, and ideally up to 12 hours.

According to the CDC and ABM guidelines, breast milk can stay in a cooler with ice packs for up to 24 hours and remain at a safe temperature.

The Cooler is 9.5’’ tall and 3’’ wide. It fits in most standard cup holders.

Yes! TSA regulations state that any medical necessary gel ice packs are exempt from liquid travel restrictions in any state (eg. melted, slushy), and with or without the presence of breast milk.

We understand that safety is your top priority. It's ours, too — and we are committed to only selling products that keep babies and breast milk safe.

Like many cooler products on the market, our Portable Breast Milk Cooler was made with a standard vacuum insulation process, utilizing mixed metals that may contain lead at a point on the bottom exterior of the cooler. This point is securely covered and is designed to be completely inaccessible to any liquid or person using the product. Only purposeful misuse or intentional damage to the Portable Breast Milk Cooler could make it accessible.

Every surface of the Willow Portable Breast Milk Cooler that comes into contact with liquid or skin meets all required federal food-grade and safety standards, and the Consumer Product Safety Improvement Act (CPSIA). Additionally, Willow Portable Breast Milk Cooler also meets the European Union’s REACH and RoHS standards, and BPA/BPS, PFOS, and phthalate safety standards.