How to make the fashion industry and fabrics sustainable is a focus of designers and fabric developers. Stelley, an environmentalist designer, integrates eco-friendly fabrics into every season. Composite environmentally-friendly stretchable fibers, eco-friendly sea-island filament, Lenzing tencel and regenerated sheeny double-faced satin become new fabric directions of womenswear in the new season. "Less but better" design style and eco-friendly fabrics are combined to display the charm of sustainable fashion.

Influenced by dematerialization, people shift their focus to the society and environment protection. Consumers will give priority to eco-friendly and dematerialized goods, so natural and comfortable womenswear will gain more attention. Designers and brands explore the use of simplified and eco-friendly techniques to reduce the pollution and the waste of resources. Natural undyed fibers, antibacterial China-hemp fabrics, eco-friendly linen and other natural textiles meet consumers' demand for sustainable fashion and contribute to environment protection.

The relationship between environmental protection and fashion is getting closer and closer, which is one of the most important research topics in the fashion industry in recent years. Environmental protection is not only a call. More and more brands pay more attention to environmentally-friendly capsules, and plan to cover environmental products in the main series. Fashion companies are using practical actions to carry out environmental protection. For knitwear, yarn has become the most critical link in environmental protection. More and more enterprises begin to consider whether the yarn is pollution-free, degradable, recyclable, energy-saving, low-consumption and harmless to human body. This report starts from the connection between sustainable development and knitwear, and aims at the controllable cost and quantity production to extract three key trends: recycled cotton, environmentally-friendly tencel, and recycled polyester made from polyester waste like mineral water bottle.