The data-driven manufacturing system at this Chinese bespoke mens' suit manufacturer illustrates the use of information technology to support mass customization in a largely manual production environment. It contrasts sharply with some of the Industrie 4.0 automation-heavy approaches taken in some Western companies. Thus the case seeks to unpack the essence of a data-driven mass customization approach that is more suited to small and medium enterprises. This case is accompanied by a Video Short that can be shown in class or included in a digital coursepack. Instructors should consider the timing of making the video available to students, as it may reveal key case details.