For much of the 20th century, you will find night clubs, sex shops, and a budding film industry at the underbelly of London, the neighborhood of SoHo. Now, with much of the vices cleared away for gleaming boutiques and high-end residential towers, one of the neighborhood’s last remaining fixture, Foot Patrol, is looking back with nostalgia. In the memories of those dreary days long gone, the English boutique is set out to create a special Saucony Shadow 6000 billed as the “Only In SoHo” edition. But like the neighborhood itself, the collaborative design will be shrouded in darkness for the time being except for a teaser video