noun
cooler box; cool box; cooler
An insulated container used to keep food and drinks cold, typically with ice or ice packs. Common for picnics, camping, and shopping.
ピクニックにクーラーボックスを持っていく。
I take a cooler box to the picnic.
スーパーで買ったアイスをクーラーボックスに入れて持ち帰った
I put the ice cream I bought at the supermarket in a cooler box and brought it home.