Alexander Wang has built its aesthetic around the ‘off-duty model’ look with a touch of New York cool and this maxi dress encapsulates exactly that. Rendered from denim with a hint of stretch, the longline style is cut to a figure-shaping silhouette with strategically placed stitching to emphasise your waist and hips. A split to the back allows you to freely strut around the room as onlookers wonder – and probably guess, whether correctly or not – where this number is from.How to wear Harrods: Style with heeled sandals and a top-handle bag.