i'd never heard of them before my mum bought me some when i got engaged. and man they're good. mum and dad took them in their van - the jug was laying down in the fridge and didn't leak. if any of them leak i think its in the first 12months two years they'll replace them? i saw mums lettuce storer/seafood cooler thingy and man i wanted to hide it in the nappy bag. plus it was a funky blue colour with flowers on it!