Anthropologie's 'Sienna'

While we're on the subject of bags called 'Sienna', here's another, this time available at Anthropologie, and slightly cheaper than the Kooba offering at $288. The tobacco coloured drawstring number is described as being "sans pockets and lining", which I take as a clever use of French to make the fact it's actually without pockets and lining (despite the hefty price) seem more acceptable. Why does using a foreign language always sound better?