2026 SPEAKER
Brittany Sierra
Founder & CEO
|The Sustainable Fashion Forum, Green Behavior
Brittany Sierra is the founder of the Sustainable Fashion Forum and a leading voice on consumer behavior in sustainable fashion. Named a Vogue Business 100 Innovator, her work focuses on the gap between the systems the industry builds and whether people actually use them in practice.
Consumer Behavior
Adoption Strategy
Industry Analysis
Academic Background
Brittany’s work is grounded in a decade of independent research across consumer psychology, behavior change, and the fashion industry. Her perspective is shaped by extensive qualitative research, including interviews and ongoing conversations with brands, retailers, and industry leaders.
Industry Experience
Brittany is the founder of the Sustainable Fashion Forum, a platform known for bringing together leaders across fashion, technology, and sustainability for nuanced, industry-shaping conversations. She has also advised brands including Rothy’s and contributed to circularity initiatives with On Running, bringing a behavior-driven lens to sustainability strategy. Her work has informed conversations across brands, platforms, and industry organizations navigating the future of sustainable fashion.
Hear Brittany speak at
SFF26
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