This article asks about the conditions of a sociological operationalization of the capability approach developed by Amartya Sen and Martha Nussbaum. Raising the question of freedom and social opportunities, the capability approach has so far mainly been discussed by economists and philosophers. In order to adopt this approach for a sociological and pragmatist perspective, it engages with methodological and theoretical issues. Whereas capabilities have until now mainly been studied within quantitative frameworks, the author opts for a qualitative method of inquiry (...) that draws on a pragmatist and configurational approach. Such a shift towards qualitative inquiry is a key condition for a better sociological understanding of notions like freedom and opportunities that stand at the core of the capability approach. (shrink)