I bought an ISO-Bag Six Meal Cooler. It comes with an assortment of different sizes of containers but the replacements were ridiculous. For seven additional 28oz containers was $14.95 and I knew I was going to be using a ton of these. After a few broke I started researching and found the company that makes them for ISO Fitness.
http://www.amazon.com/Isobag-Managem...ywords=iso+bag
I bought 150 for $60+/- shipped. They are reusable if you take care of them. Sometimes the lids get chipped around the edges but the lids still close and are spill proof. They sometimes get warped in the dishwasher and microwave due to heat so I had wash them or make sure the dishwasher is not on heated wash/dry. Also freezing them makes they very brittle (plastic) so be careful with that as well. I cannot remember how long ago I purchased these but it has been at least three months and I am still using my first round of 20-30 containers and haven't had to dip into my reserve stash yet. https://www.shopatdean.com/apps/sear...D=product_type






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