Anyone tried this or have a good idea for warming up breast milk on the go?

Tiffany • Vegas Native ✨ | LEOW 💙 | Mom of 3 👧🏼👦🏼👧🏼| Home and Natural Birth Advocate 💕

Or have a good idea for warming up breast milk on the go? I’ve been running into times where I can’t get hot water while I’m out and can’t warm my girls milkies. My other two were formula babies so I just warmed up the water before we left the house. NBD.