A comet streaked into France in the 1930s, its fallout sending the staid echelons of haute couture into a tailspin. A mere 30 years later a rogue missile blasted into London, blowing dainty English clothes sense to smithereens. Both these thunderbolts shot the stuffing out of cloying conventionality, one with an arrow-narrow silhouette, the other by blitzing the luxe out of luxury, the ex out of exclusivity.