This paper aims to understand factors determining location decision, or country selection of Readymade Garments (RMG) outsourcing in global supply chain management. In the process, this article fills a knowledge gap by proposing a unique model that relates country determinant factors and firm’s motives to location choice specific for RMG outsourcing moderated by firm’s size and age. The overall framework enlightens the scholars about the significance of distinguishing factors as the basis for differential outsourcing location decisions. Multinational managers may find it useful to identify the optimum outsourcing location decisions considering idiosyncratic factors that are unique to RMG outsourcing location decision.