The trouser suit continues to have a moment as far as London's designers are concerned, and they're getting even more opulent and extravagant. All-over sequins at Halpern, exaggerated lengths at Temperley, and houndstooth at Victoria Beckham were just the beginning: if you don't experiment with print and texture, do so with shape, opting for details like sashes or slinky double-breasted cuts.