The brilliant Koo-Di Fridge To Go is a must-have for any day trips with your baby. It works just like a refrigerator, keeping bottles, breast milk & food chilled to a safe 5°C for up to 8 hours. The Fridge To Go Mini is large enough for one bottle, & even comes with one bottle & two small food containers. It also has a convenient handle so that you can hang the bag from your pram.