The theory of change of the SAC is straightforward and profound: putting standardized sustainability measurements that are both deep and profound in the hands of key decision-makers in the apparel and footwear value chain will incentivize them to make better decisions that collectively reduce the environmental impact and increase the social justice of the entire industry. sac developed the Higg Index, a suite of tools that enables brands, retailers, and facilities of all sizes — at every stage in their sustainability journey — to accurately measure and score a company or product’s sustainability performance. The Higg Index delivers a holistic overview that empowers businesses to make meaningful improvements that protect the well-being of factory workers, local communities, and the environment.