GRS (Global Recycled Standard): promoted by Textile Exchange, is one of the most important non-profit organizations promoting responsible and sustainable development in the textile indu- stry worldwide. The GRS provides tests and parameters for the following areas: product composi- tion and recycled materials content; traceability maintenance throughout the production process; restrictions on the use of chemical agents; compliance with relevant environmental parameters such as supply, discharge of water resources and energy recovery; compliance with social parame- ters relating to workers’ rights.