Purchase intention of sustainable clothing is investigated using fuzzy-set qualitative comparative analysis to identify equifinal causal paths. A sample of 81 German students was drawn employing a two-stage cluster sampling approach. Environmental concerns appear to be a necessary condition for purchase intention. Segmentation according to gender revealed that for females, a pure focus on environmental concerns is sufficient for purchase intention, while the same configuration prevents this intention for males. Females emphasize price value considerations and do not wish for high visibility of their sustainable clothing, while males indicate the opposite. Further, a prestige-driven causal combination was found for the male segment, stressing social influence and visibility. The purchase intention of sustainable clothing yields interactions among causal conditions, corroborating the need for methodological diversity to gain a better understanding of the phenomenon.

使用模糊集定性比较分析来调查可持续服装的购买意愿，以确定等最终因果路径。采用两阶段整群抽样方法抽取了 81 名德国学生的样本。环境问题似乎是购买意向的必要条件。根据性别细分显示，对于女性而言，纯粹关注环境问题足以产生购买意向，而相同的配置则阻止了男性的这种购买意向。女性强调价格价值考虑，不希望可持续服装的高知名度，而男性则相反。此外，在男性群体中发现了声望驱动的因果组合，强调社会影响力和知名度。