Nanci
SnickerSnakes
Besides, Gel Packs are already outdated and ineffiecient........PCM packs or panels are the way to go for any shipping temperature........
LONG day at work. So I ran across this thread, (and resurected it!) and I've never heard of PCM panels! Well- I know now! I can't wait to try them out. Thanks for the idea.
Looks like you can buy them at Josh's Frogs.