Inventories are being kept tight in hope of increasing full-price selling and reducing markdowns.
The music star had launched the collection last February during New York Fashion Week.
The French designer was synonymous with striped sweaters and Left Bank insouciance.
A clutch of London-based artists and fashion designers are marking the summer games with a series of idiosyncratic art works.
A judge for preliminary hearings decided on Friday the designers are to stand trial.