Firms dealing with 'Made in Spain' fashion products (e.g., textiles, apparel, and footwear) have increased their presence in the world market over the last two decades. This paper focuses on the origins of this process. After constructing a new database of export districts, it first investigates the sources of the international competitiveness of these districts. Second, it explores whether industrial districts boosted the internationalization of Spanish fashion firms. The paper concludes that most of today's outstanding Spanish firms in fashion-related international markets emerged from 1980s'districts, which could have benefited from classical Marshallian externalities, while also taking advantage of the organizational capabilities of leading firms.