This timely book focuses on the upgrading of firms within the global garment industry, examining how garment manufacturers and retailers in different countries internationalize, develop their capabilities and enhance their sustainability. It highlights the important role the global garments industry plays in the socio-economic development and environmental outcomes of emerging economies. Drawing on firm-centric, multi-level analyses, the book addresses four key questions: how do apparel manufacturing companies in emerging economies internationalize? What factors promote or hinder internationalization? What influences the abilities of suppliers to develop different capabilities? How do firms achieve sustainability? Interdisciplinary contributions draw on a range of perspectives, including global value chains, international business, operations management, innovation, and sociology, to answer these questions. Providing novel insights to the topic, this book will help firms, researchers and national and multilateral organisations improve the competitiveness of suppliers, workers' well-being and environmental outcomes. It will be particularly useful to business economics and economic geography scholars.