Good Insulin Cooler Bag
I bought this b/c we needed to transport some medications while on vacation.  We made sure to also freeze the little cooler bag and it seemed to make a big difference.  The medication stayed cold for about 8 hours.  The ice packs were still cold and one you could still feel that the center was still a little hard.  Other reviews indicate that this doesn't keep anything cold for longer than 4 hours.  I recommend making sure to also place the cooler bag in the freezer too and I think you won't be disappointed with how this little cooler bag works.
Rating: 5 stars