- FDA approved materials used, perfect for safe and extended freezer storage - Medical grade sterilization to ensure safe feeding - European standard - BPA Free - Comes with Thermal Sensor to indicate the readiness to serve the milk - Double walled to preserve nutrients effectively - Thick laminate to prevent ink leaching - DOUBLE zipper top to prevent leakage - No-spill self-standing bottom - Heat sealed sides to prevent splitting - Easy to read designated area for date, name and time - Pre-calibrated ounce/ml markings for accurate measuring Storage Instructions: - Leave some room at the top of the storage bag to allow for expansion when milk freezes - Label milk with the date and time it was expressed and always use the oldest stock first