"I think some people still don't really know what ethical fashion is," Amanda Hearst says. The editor and activist, a contributor to Town and Country and a former Marie Claire columnist, has for several years sought to spread the word by promoting (and wearing) labels that use organically grown, recycled and sustainably harvested fabrics and employ artisan collectives in the developing world. When Hearst met the young New York designer Hassan Pierre - whose Way It Should Be and Basic collections use materials ranging from organic cotton jersey to discarded cassette tape - the two discovered a shared wish to create a retail platform for the movement's best offerings. The resulting collaboration is Maison de Mode, a series of ethical fashion pop-up boutiques whose second event happens this weekend at the Hole Gallery as part of the Frieze Art Fair. The first, which took place in December during Art Basel Miami Beach, nearly sold out. "The funny thing," Hearst says, "is that I think a lot of people walked away not realizing that the items were ethically produced." That may be because, she adds, "I basically made it my mission to prove that ethical fashion isn't frumpy and bland." Her edit this week underscores her point. It includes whimsical statement pieces, including beachwear from the supermodel Liya Kebede's breezy Lemlem line (made by collectives in Ethiopia) and glam-bohemian jewelry from Muzungu Sisters, a curated online artisan-goods market founded by the heiresses Tatiana Santo Domingo and Dana Alikhani. There is also understated tailoring in Pierre's own sleek Basic collection and Eden Diodati, a British luxury label manufactured through an Italian nonprofit that employs and rehabilitates abuse victims. The stalwart eco-experimenter Stella McCartney, the fair-trade runway regulars Edun and Maiyet, and the socially conscious Brazilian sportswear mega-brand Osklen round out the assortment. "These are all very different brands," Hearst says, "but they all care about the environment and community." The series will continue at what Pierre calls "highly recognized cultural events." Next up: a pop-up in September during New York Fashion Week, another in Los Angeles next year during the Oscars and hopefully additional 2014 stops in London and São Paulo, cities Hearst cites as the ethical fashion movement's nerve centers. "I want Maison de Mode to go global," she says. Maison de Mode is open from May 10 to May 13, 12 p.m. to 7 p.m., at the Hole Gallery, 312 Bowery, New York City. In an earlier version of the post, the photographer's credit was omitted. Her name is Saskia Lawaks.