london-based design practice studio xag has installed window installations at the calvin klein flagship stores in the british capital  and in milan . the design is a collab effort with the fashion brand and features huge curved metal rails, highlighted in cool neon blue and framed in windows tinted with mirrored cut-out vinyl. set off against a dreamy sky backdrop, calvin klein's washed out denim pieces from its s/s 2014 collection hang within the circle, appearing weightless in the clouds. studio xag's installations will gradually be introduced at the fashion brand's other stores across the planet throughout the coming season. location : 170 regent street [mayfair]. location : corner corso buenos aires + viale tunisia [porta venezia].