This article examines the malaḥfa, a veil that has long been popular in Mauritania, using the scholarship of materiality to analyze how it and the wearer co-constitute each other. This approach demonstrates how the malaḥfa’s particular form and fabric provide women with certain constraints and possibilities; women activate these qualities to exercise agency, be it in redefining their positions in the social hierarchy, exercising control in their relationships, or asserting authority over others. Focusing on the malaḥfa’s materiality illustrates how such garments can be central to women’s agency and power, and demonstrates how women shape the broader social hierarchy.