Hennessy XO Cognac Marc Newson Limited Edition 70cl Marc Newson's limited edition design gives the signature Hennessy X.O wholly unexpected twist decanter. Once he had pared the bottle to his purest form, Marc chose to reprise his traditional decorative motifs in a corrugated relief. Hennessy X.O decanter. The lines of the strength of the decanter's shape. They highlight both the bottle and the contents, making the whole feel warmer and more tactile. Taken together, all these elements are meant to convey the unique, immersive experience of X.O. " The eaux-de-vie range in age from 10 to 70 years.