The fusion of digital transformation and Financial Technology (FinTech) has dramatically reshaped the global fashion industry landscape. With consumers increasingly turning to digital platforms for their shopping needs, innovative fintech solutions such as digital wallets, mobile banking, Buy Now Pay Later (BNPL) schemes, AI-driven financial tools, and blockchain-powered payment systems have fundamentally changed how consumers make purchasing decisions and engage with brands. The digital fashion market—marked by online retail, social commerce, influencer marketing, and customized shopping experiences—depends heavily on fintech infrastructures to ensure seamless, secure transactions and high levels of customer satisfaction. This chapter delves into the influence of fintech adoption on consumer purchase behavior within the digital fashion sector by examining the impacts on convenience, trust, security, impulsive buying tendencies, customer loyalty, and financial inclusion. It also explores emerging trends, challenges, and strategic considerations relevant for fashion retailers, marketers, policymakers, and scholars navigating the fast-evolving digital economy.