Performance Without Toxicity for Conscious Fashion Shoppers

Spring is here. The season for camping, hiking, running marathons, being in nature. The season when performance gear moves from your closet to actual use, when you’re thinking about what works, what lasts, and what you need to replace.

It’s also when the gap between performance marketing and material reality becomes most obvious. Waterproof that isn’t. Breathable that doesn’t breathe. Lightweight that falls apart. And underneath all of it: petroleum-based synthetics, toxic adhesives, PFAS treatments, materials you wouldn’t want against your skin if you knew what was in them.

There’s an exhibition happening in London right now that I think is worth paying attention to. It’s called Performance Without Toxicity, part of Fabrica X, and it features five outdoor and athletic footwear brands that are trying to answer a question the industry has avoided for decades: Can performance gear work without the chemicals? A few months ago, sustainable materials experts attended the opening to discuss the possibilities and the untapped opportunities that lie in this space. The exhibition gained significant attention, it was featured in the Financial Times, and posed a direct challenge to the industry: reimagine toxin-free performance wear. The reality is that performance wear is and has always been mostly made of synthetic materials, and is therefore toxic. However, innovative sustainable materials seemed to offer a solution, and this is what this exhibition is about.

The brands, Allbirds, Circle, Finisterre, SOLK, and Vivobarefoot, which took part of the exhibition aren’t perfect. But they’re participating in something that matters: showing their work publicly, committing to material transparency, and setting targets that go beyond vague sustainability claims.

Here’s what caught my attention about each of them:

Allbirds has built their entire model around natural materials, wool, eucalyptus tree fiber, sugarcane-based foam. They measure and publish the carbon footprint of every product. Their commitment isn’t just to use better materials; it’s to show you exactly what “better” means in measurable terms.

Circle is working on circularity from the design stage, shoes built to be disassembled and returned to the material loop. They’re focusing on bio-based materials and designing for end-of-life before the shoe ever gets made. It’s circular business, not circular marketing.

Finisterre comes from the outdoor gear world, where performance usually means synthetic everything. They’re shifting toward natural materials where possible, using recycled content where it’s not, and working on take-back programs so worn-out gear doesn’t end up in landfills. Their approach is iterative, improve with each season, don’t wait for perfection.

SOLK is newer, focused on minimal, versatile footwear made from bio-based and recycled materials. Their model is about fewer products, designed to work across contexts. Not a shoe for every activity, shoes built to last across many.

Vivobarefoot has been around longer, with a focus on barefoot-style footwear and regenerative materials. They’re working with wild hide leather (from non-industrial sources), algae-based foam, and recently launched a repair and resole program. Longevity as a feature, not an afterthought.

Why This Exhibition Matters

Performance Without Toxicity isn’t just a showcase. It’s a commitment. These brands are standing in front of an audience and saying: this is where we are, this is where we’re going, here’s how we’re getting there.

That kind of transparency is rare. Most brands talk about sustainability in press releases. Fewer are willing to put their materials, their processes, and their progress on public display where people can ask hard questions.

The exhibition focuses on what these brands are moving away from petroleum-based synthetics, toxic adhesives, PFAS treatments, materials that can’t be traced or recovered. And what they’re moving toward natural fibers, bio-based alternatives, circular design, ambitious reduction targets.

It’s not about being toxin-free tomorrow. It’s about showing the work of getting there.

What You Can Do With This Information

If you’re gearing up for spring, a trail run, a camping trip, a marathon you’ve been training for, and you care about what goes into your footwear, these five brands are worth considering. Not because they’re perfect, they’re not. But because they’re transparent about what they’re using, where they’re improving, and what they still need to figure out.

That transparency gives you agency. You can look at what they’re doing and decide if it aligns with what matters to you. You can see their targets and hold them accountable. You can ask questions and expect answers.

And if you’re in London, you can see the exhibition yourself. Performance Without Toxicity is running at Fabrica X next to King’s Cross. It’s a chance to see the materials up close, understand the trade-offs, and ask the brands directly what they’re working on next.

Performance gear doesn’t have to be toxic. But the transition away from it takes time, investment, and brands willing to show their work publicly.

These five are doing that. And if you’re shopping for footwear this spring, for trails, for roads, for wherever you’re headed, it’s worth knowing who’s actually doing the work, not just talking about it.

Spring is the season for being outside. It should also be the season for knowing what you’re wearing while you’re out there.