The Ameda Pump ‘N Protect® Breast Milk Storage Bags are a convenient solution for storing precious breast milk. Save time and reduce waste by pumping directly into the bag with easy to use adapters (sold separately). These bags are compatible with Ameda HygieniKit Milk Collection System. The double zip seal and reinforced side seams help prevent leakage during storing and transporting. The gusset bottom allows the bag to stand and lay flat during freezing & thawing. The flexible bag allows for easy handling, simply pour from side to transfer milk safely from bag to bottle.