It's a cooler. It is as insulated or better as your average shipping box I think. Styrofoam in between plastic walls. If worried, can enclose a heat pack in a water tight, plastic container (a bag might get punctured). If still worried, wrap it in glass wool and place the cooler inside a shipping cardbox.
I didn't get that.
Your right heat them up once recieved them.
I didn't get that.