Hi, I'm Brittany Sierra

〰️

Hi, I'm Brittany Sierra 〰️

I help sustainability teams in fashion understand why their initiatives aren't driving consumer adoption, and how to redesign them so they do.

After a decade running the Sustainable Fashion Forum and studying the gap between what consumers say and what they actually do, I know where adoption breaks down. And more importantly, how to fix it.

Work With Me

You Might Have Seen Me On

Most sustainability teams build programs around what consumers say they'll do, which is why most programs make sense on paper, and underperform in practice.

I work with sustainability leaders in fashion to help you understand the behavioral mechanics behind your programs, redesign them for actual participation, and translate that work into language your leadership will fund.

Work with Me

How to Work With Me

The Adoption Audit

A focused engagement where we examine why your sustainability efforts aren't converting, and what to do about it. We look at your messaging, your consumer research, and your cultural positioning, then build a clear roadmap to close the gap.

Best for: Brands preparing for a major launch or struggling to show ROI on existing sustainability work.

Book Your Audit ↗

Team Workshop

A half or full-day session built around the behavioral science of consumer adoption. We work through why consumers say they care about sustainability but don't follow through, and how your team can close that gap.

Best for: Sustainability and marketing teams that need to get aligned around a consumer-first strategy.

Book a Workshop ↗

Strategic Advisory

Ongoing thought partnership for sustainability leaders navigating the long game. We work together regularly to pressure-test your strategy, sharpen your positioning, and build the kind of internal case that protects your team's influence and budget.

Best for: Senior sustainability leaders who need a strategic thought partner, not another vendor.

Book a Discovery Call ↗

If you're asking consumers to do something different: return, repair, pay more, choose you over a cheaper option, you're in the behavior change business. Let's make sure your programs are built for it.

Book Your Strategy Session