'Shop Until You're Blown Away' is the message of the Issey MiYake flagship store in Tribeca, New York. It was designed by Frank O. Gehry and his former protégé, Gordon Kipping of Manhattan-based GTECTS. The designs of the eternally experimental Japanese couturier have always carried a whiff of chaos. 'The Tornado' is the name of the 25-foot-high titanium column-like structure which dominates the Hudson Street shop. It's pure Gehry - and yet if you squint you'd swear you're looking at a classic pleated MiYake dress. Extending from a shaft emerging from the cellar floor to a turbulent sprawl engulfing the ceiling of the ground floor, the Tornado does energize the whole room, both engaging and provoking the shopper.