Let’s get this straight: packing a cool box (or cool bag, if you're going soft-sided) isn’t just about chucking in a few cold cans and hoping for the best. Do it wrong, and your food warms up ...

Ninja is launching its first ever cool box, the FrostVault. A must-have for the summer season, the Ninja FrostVault has a big 28-litre capacity, a dry storage drawer and a stylish, durable design.

Bunker 66L Cool Box review Price and availability At the time of writing, the small range of Bunker cool boxes is limited in number, although the company won’t say if or when they will go off sale.