Breast milk to go

Kiara • ~🥰Momma to 2🥰~
My insurance only covers the the ameda purely yours pump and not any of the accessories such as the tote or cooler and extra storage bottles. So my question is how do I travel with breast milk? Do I need a cooler tote to travel with bottles? Wouldn't the bottle be to cold to give to baby? FTM and I can't find any understandable material explaining breast milk care that answers all my questions