Medela Ice Pack for Breast Milk Storage, Compatible with Pump in Style Advanced and Freestyle Breast Pump, 87092, Blue, 1 Count is for the Pump In Style Advanced and Freestyle breast pump cooler bags (each sold separately). Take one with you and keep an extra in the freezer so you always have one ready to use. The Medela Ice Pack is an authentic Medela spare part made with the quality materials and workmanship you expect and trust, only from Medela. Non-Medela spare parts can vary significantly in terms of product design, materials and workmanship; all of which may affect the performance of your Medela breast pump.