Breast Pump Sizing KitFind your perfect breast pump flange fit with a wide range of inserts designed for maximum pumping comfort and milk output.

Keep your Willow 360 pump working its best with this replacement parts bundle

Our best-selling pump

and supported by 360 Care

Kit comes with 21

Everything you need to prioritize breast care and comfort

bottle warmer

Willow Go's USB charger has two ports so you can charge both your pumps at once

24mm flanges are compatible with sizing inserts for mamas who measure smaller than 21mm

Total motherpumping freedom

designed to help you neatly and efficiently organize every last drop

leading milk coolers

Willow Go's reusable milk containers make pumping and transferring milk a breeze