2 items in this article Photo-Illustration: The Strategist; Photos: Erika Veurink, Elizabeth Cardinal Tamkin, Peyton Dix Last winter, in a rush and running late for dance class, I forgot a change of clothes. But when I arrived, panicking that I might be forced to attend in a tank top and some decidedly unathletic gray wool trousers, a solution mercifully presented itself: My studio, Good Move, makes merch , including a pair of fluorescent-orange gym shorts and a pair of dark-maroon track pants .