When space and weight are a premium, collapsible containers like these come into their own. The X-Seal & Go set comes with two containers (one large, one small) which are both fitted with airtight seals to prevent leaks. When not in use they fold flat, and one will fit inside the other, to reduce the amount of space they take up even more. As well as being perfect for adventures out in the countryside, they work just as well for picnics and packed lunches. Kids will love the range of bright colours, too.
Expect to pay £25
www.seatosummit.co.uk