Robyn Berkley spent seven years as fashion director at Kelly Cutrone's People's Revolution before her health forced her out: 16 shows in a New York season, midnight most nights, and a body that stopped cooperating. She quit, flew to Bali for yoga teacher training, and came home with a name and no plan. Live the Process is now one of the first luxury activewear brands, made in its own California factory, stocked at Net-a-Porter, Selfridges, Lane Crawford and Le Bon Marché, with collaborations including the David Lynch Foundation, Moon Juice and the Whitney Museum. She has never raised a dollar.

We get into the stranger at The Dutch who called her idea the dumbest thing he'd ever heard and then became her co-founder, the two years it took to source a fabric that costs triple, the corset bodysuit that sold out on launch day at Net-a-Porter, wh ...