In this talk, and in his newly released book of the same name, Adam Mendelsohn argues that the Jews who flocked to the United States during the age of mass migration were aided appreciably by their association with a particular corner of the American economy: the rag trade. From humble beginnings, Jews rode the coattails of the clothing trade from the margins of economic life to a position of unusual promise and prominence, shaping both their societal status and the clothing industry as a whole.