The Higg Index, developed by the Sustainable Apparel Coalition, is a suite of tools for measuring sustainability impacts in the textile industry, focusing on environmental, social, and labor factors across the supply chain. It provides a standardized framework to help companies improve their sustainability practices and meet consumer demand for transparency. Key components include various modules assessing facility-level environmental impacts, social and labor performance, and product lifecycle impacts, with an emphasis on continuous improvement and data-driven decision making.