This thesis covers a qualitative case study of corporate social responsibility work in medium-sized fashion companies in the moderate price range. The aim of the study was to research the barriers and opportunities to corporate social responsibility in medium-sized fashion companies within the moderate price range in order to understand which aspects that are most important for these companies to focus on. Corporate social responsibility, shortened CSR, means taking environmental, social and financial responsibility for all actions of the company. The industry of the company as well as different company characteristics creates different contexts in which a company may work with CSR. The fashion value chain is a context for fashion companies. In order for a fashion company to be sustainable, the entire value chain should be considered, but it is within the upstream part of the fashion value chain that the most damaging processes occur and it is therefor the upstream part of the value chain that was focused on in this study. The size and price range of a company are characteristics that affects how a company may create successful CSR practices. The study also focused on the consumer perspective and the added value that CSR may bring. The study identified several perceived barriers and opportunities to CSR in medium-sized fashion companies within the moderate price range that may be important to consider in order creating successful CSR practices. Costs, quality assurance, communication and coordination where identified as important barriers. The study also identified that the added value of CSR to the brand and the increased consumer willingness to pay as important opportunities. The study found that cost-consciousness, quality assurance, communication and coordination and the added value perspective may be the most important aspects for medium-sized fashion companies in the moderate price range to focus on in the CSR work. By being aware of these barriers and opportunities, companies may create better CSR strategies, which focus on achieving the opportunities while avoiding the barriers.