The past year in fashion has been one of risk-taking for Jack McCollough and Lazaro Hernandez. Beginning with their spring collection, they defied the notion of see-now-buy-now and fast fashion with a collection devoted to intense fabric work, craft and fantastic details — consider a red and black dress that was tightly woven out of ostrich feathers and a striped dressed made of slim woven strips of leather. For fall, a celebration of gritty, New York strength marked by robust utilitarian outerwear emblazoned with their logo in graphic type and dresses defined by bold, arty femininity. The nod to New York was deliberate, as McCollough and Hernandez, who pioneered the last wave of emerging American design talent, have decided to bid farewell to their fashion home of 14 years, at least runway-wise. Beginning in July, they will move their show to the Paris couture schedule.