Shows how system level transformation is needed to renew textile and fashion industry towards sustainability. Provides the newest information needed for textile and fashion lifetime management (short and long lifetimes), recycling and closing the material loop. This information is needed while constructing a functional system for circular economy. Describes the newest technological innovation for managing product lifetimes and for material recycling, and describes the differences in mechanical and chemical recycling, and furthermore limitations and possibilities in these. Describes the system for textile waste collection and waste sorting and how to use newest technologies (e.g. AI, robotics) in these.