Introduction
With growing global concern over climate change and environmental degradation, the Hong Kong fashion and textile industry is facing increasing pressure to adopt more sustainable practices. At the same time, this transition presents new opportunities for the industry to enhance its competitiveness and strengthen long-term resilience. As an important player in global fashion trade and supply chains, Hong Kong is well positioned to support and benefit from this shift. In response, the Institute of International Sustainable Development (ISD) launched the project, “The Guide for Sustainability Journey – A Practical Toolkit for Hong Kong Fashion and Textile Industry,” with funding support from the Trade and Industry Organisation Support Fund of the Trade and Industry Department of the HKSAR Government.
Building on the findings of the previous project, this toolkit has been developed as a practical and user-friendly online resource for local enterprises, particularly small and medium enterprises (SMEs). Its purpose is to help businesses better understand sustainable technologies and solutions and apply them to their own operations. The toolkit focuses on three key improvement areas identified by the industry: handling of surplus products, design and manufacturing, and the selection of greener raw materials. It also provides accessible information on market-available technologies, practical implementation guidance, case sharing, updated policy and funding information, and customised booklet functions. Through this study and toolkit, the project aims to equip enterprises with practical knowledge and tools to support informed decision-making, encourage the adoption of green technologies, meet evolving international requirements, and advance their sustainability journey.
3D Garment Simulation
Cobalt Fashion, a Hong Kong-based apparel company, has integrated CLO Virtual Fashion into its design and production processes to enhance sustainability and efficiency. CLO Virtual Fashion is a 3D garment simulation software that enables designers to create, modify and visualise clothing digitally, significantly reducing the need for physical samples. Through this tool, Cobalt Fashion has minimised fabric waste and shortened production cycles by allowing real-time collaboration with its manufacturing partner. The technology supports remote design reviews and virtual fittings, cutting down on travel and resource use. It is particularly useful for fast fashion and seasonal collections, where speed and adaptability are key. However, the adoption of CLO Virtual Fashion requires initial investment in software, training and digital infrastructure and the accuracy of simulations depends on the quality of data inputs. Despite these challenges, the case demonstrates how 3D design tools can help SMEs reduce their environmental footprint while maintaining design quality. Cobalt Fashion’s experience highlights the importance of digital readiness, team training and cross-functional collaboration in successfully implementing sustainable technologies.
Ambercycle
Ambercycle is a US-based company pioneering a circular chemical recycling technology that transforms post-consumer polyester waste into high-quality, food-grade quality polyester pellets. Their solution uses a non-toxic, closed-loop chemical process to depolymerize used polyester into its original monomers, which can then be repolymerized into new polyester suitable for apparel, packaging, and other industries. This innovative system is a key enabler of a circular economy in the fashion sector, particularly for handling polyester waste, which is traditionally difficult to recycle without downcycling.
Bamboo Fibre
Bamboo fibre is a sustainable textile material derived from bamboo pulp through a chemical process. It results in a soft, breathable, and biodegradable fabric, offering a green alternative for the fashion and textile industry to reduce environmental impact.
Biobased Fiber
AlgaFila, a biobased fiber made from seaweed, is being used by Hong Kong designer Toki Wong as part of a sustainable material innovation. This technology showcases how SMEs can integrate low-carbon raw materials into fashion production. AlgaFila offers a soft, breathable, and biodegradable alternative to synthetic and resource-intensive fibers. It requires less water and energy during production and is free from harmful chemicals. The material is compatible with standard textile processes, requiring minimal adjustments. Challenges include higher material costs, limited availability, and the need for industrial composting for proper end-of-life treatment. The case highlights the importance of material research, supplier collaboration, and consumer education in driving adoption. AlgaFila supports waste reduction and circularity, while helping brands differentiate in the market. This practical example demonstrates how SMEs can explore innovative, eco-friendly materials to meet sustainability goals and consumer demand for greener fashion.
Biological Method on Waste Recycling
HKRITA (Hong Kong Research Institute of Textiles and Apparel) has developed a biological method for textile waste recycling, which uses bio-based enzymes and microorganisms to break down cellulosic and synthetic textile waste into reusable raw materials. This method is part of a broader initiative to close the loop in the textile supply chain, particularly for post-consumer and post-industrial waste that is difficult to recycle using traditional methods. The technology is designed to reduce reliance on virgin fibres and support the transition to circular and biodegradable fashion systems.
