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Title: Most expensive and least useful
Review: I started off with the Medela bags but one day they fell to the side and spilled 13 oz of milk in the little black carrier and into my work bag. Then I moved onto the Gerber ones with zip lock but were not spill-proof either. Then tried the Lansinoh which have a double zip lock system and those can be carried upside down and not a drop is lost. Also cheaper than Medela.
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