Hey everyone!
So we are moving in two weeks from Texas to Maine.
I have a small stash of frozen breast milk, about 2 of these storage containers - what is the best way to transport it without it defrosting? I'll be flying with DD and DH will be driving (4 days).

Because we will be staying at my parents house for a few days to begin with, I was thinking of just shipping it directly to them... but the few internet searches turns up info to ship non-frozen breast milk. it can be kept cold, but not frozen.

Help!