The fashion industry has been notorious for its opaque supply chain practices, making it difficult for consumers, regulators, and stakeholders to monitor and verify the ethical and environmental claims made by brands. This study aims to assess the current state of transparency and traceability in the sustainable fashion supply chain, explore the potential applications of blockchain technology for enhancing transparency, and evaluate the resulting benefits and limitations, including its impact on consumer trust, brand reputation, and sustainability practices. The research findings indicate a moderate level of transparency and traceability in the sustainable fashion supply chain, with challenges related to standardized reporting, sub-tier supplier visibility, resistance to change, and implementation costs.