The concept of CSR in their business models

To what extent fast fashion companies implement the concept of CSR in their business models?
CSR stands for Corporate Social Responsibility. The paper should generally focus on the analysis of the triple bottom line among three chosen fast fashion companies like for example Zara, H&m, etc. The stricture should be introduction, methodology then chapter 1 - presentation of CSR as a business model with an extra focus on the triple bottom line model, then findings of the data collected (data should be taken from reports of those companies etc.) and then analysis and finally conclusions. The main body of the paper should be the findings and the analysis.