First up is our cheapest lunch box, the Sainsbury’s 900ml Klip Lock. It’s actually more of a food storage box, but we know that most of you will use something along these lines for your own lunch.

Rattleproof?

Surprisingly so. There was a little bit of pink liquid at the bottom of the plastic bag after a good shake, but considering the budget nature of this box the amount was minimal. More of a general dampness around the box than an deluge of liquid.

Size and weight 

It’s very light, but the size is small. Your sandwiches might have to be cut in a slightly off way to fit. Sainsbury’s does a whole range of sizes though.

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Cleverness

No special compartments here. But it has one job to do and it does it well.

Price

What a steal! £2.95.