Fashion Tech You Can Feel
Stella McCartney’s summer 2026 collection features plant-based feather alternatives and denim that absorbs and neutralizes harmful air pollution. Is this the future of fashion?
Key Takeaways
Brands are shifting attention from AI apps to “fashion tech you can feel,” testing materials like Bananatex, Kelsun, and Spiber’s Brewed Protein as supply shocks, tariffs, and new rules push them beyond the old natural-vs-synthetic playbook.
The category is still small, accounting for about 1% of the fiber mix today, but credible forecasts point to roughly 8% by 2030 as pilots turn into products across luxury and the high street.
Getting there will take bankable multi-year offtakes to finance capacity, drop-in materials that run on existing mills, and blended use with conventional fibers — so price, performance, and supply all pencil out for the average shopper.
The Brief
Stella McCartney’s summer 2026 collection features plant-based feather alternatives and denim that absorbs and neutralizes harmful air pollution. Is this the future of fashion?
Why Now
Macro uncertainty is driving next-generation (next-gen) fiber innovation and forcing brands to consider alternatives to existing natural and synthetic textiles. Startups recognize this demand, and are coming to the table with increasingly production-ready alternatives. But these materials are often pricey and slow to come to market, making fundraising a challenge. They’ll only become broadly mainstream if costs move toward parity, performance matches incumbents, and multi-year offtakes de-risk scaling.
The Next Gen Players
Traditionally, textile innovation has been focused on recycled materials, but as it stands today, recycling companies don’t have the feedstock needed to support the fashion industry on recycled materials alone – thanks, in part, to the industry’s overreliance on the mostly un-recycleable polyester. As science has improved and the degradation of the environment has become even more pressing, companies have started to wonder if innovation at the fiber levels can fill this gap.
Because many of the startups creating fiber alternatives are in a relatively early stage, it’s difficult to gauge the exact size of the industry as it stands today. Sustainability platform Fashion for Good and the Boston Consulting Group (BCG) released a report in February of this year that places next-gen fibers at just 1% of the overall fiber market today, but the same report projects that number will jump to 8% by 2030, reflecting the recent uptick in industry investment.
When I asked Bethany Meuleners, Textile Design & Development Lead at filament and 3D printing system Variloom, why brands are slowly leaning into fiber tech now, she pointed to the obvious and the urgent: COVID proved how easily supply chains wobble, tariffs and trade friction add cost and uncertainty, and sustainability rules are moving from “nice to have” to “need to comply.
Variloom helps brands reduce waste, excess inventory, and reliance on offshore manufacturing through an on-demand 3D print system and proprietary, recyclable material. The company’s pitch is simple: move some production closer to the customer, print only what sells, and do it with a material that can be recycled back into the system. “It’s really that marriage of design and sustainability and tech and the excitement around that,” says Meuleners, that makes Variloom’s product so special. The company’s recent award-winning collaboration with Rip Curl offers a concrete example of how this works in performance gear. That segment is a natural early adopter, thanks to its focus on function, faster product cycles, and openness to new materials.
Variloom is only one of the key players. The next-gen space breaks into a few practical lanes:
Plant & algae fibers: BANANATEX® spins abacá (banana) into a tough, plastic-free canvas already used in bags, sneakers, and ready-to-wear, while Keel Labs’ Kelsun® seaweed fiber has moved from a Stella McCartney runway moment into Outerknown and & Other Stories more approachable price points. Kintra Fibers is ahead of the production game: Their bio-based, polyester-like yarn meant to run on today’s mill equipment.
Protein/fermentation fibers: Spiber’s precision-fermented “Brewed Protein™” are the only fibers, per ISO standards, made through a precision fermentation process available on an industrial scale. The product spun in the company’s Thailand facility has appeared in brand capsules with The North Face and Junya Watanabe. AMSilk, which just announced an over $60 million (€52 million) fundraise, is pushing microbial silk toward textiles and footwear.
Alt-leathers: TômTex forms plastic-free chitosan sheets with fashion and mobility pilots, while Polybion™ grows Celium™, their fruit-waste–derived cellulose sheet.
How it Wears
So what does this look like on a hanger? Enter In House, a New York studio turning next-gen fibers into clothes people actually want to wear. In a past life, when founder Rheanna Henney was working as an investor at sustainable venture capital funds, she noticed how few sustainable fashion solutions were implemented authentically. “In House was designed to address the quality of women’s clothes, the fit of women’s clothes, our connection to our clothes, and how we get dressed,” shares Henney. The brand also happens to take a circular approach to everyday clothing.
Their pieces only use innovative or regenerative fabrics, though you wouldn’t be able to tell by the touch. They are the first North American brand to use Spiber’s plant-based protein fibers in a baby-cashmere alternative. The brand’s luxury suiting options are 90% Merino wool and 10% Spiber. The blend uses 90% less land, 86% less water, and 66% less greenhouse gas emissions compared to cashmere, according to Henney. The brand’s non-suiting choice, a luxurious, sheer, everyday set, is made from BANANATEX®’s abaca plant fiber. The fabric, per Henney’s description, exists somewhere between linen and cotton — breathable, but less prone to wrinkles. They’re extremely wearable, chic, and Laura Reilly-approved.
In House is not anti-wool or cashmere or against using natural proteins, Henney clarifies. In fact, their contemporary suiting is made from RWS-certified wool, and their poplin is grown at a regenerative farm in Turkey. That being said, she believes the diversity of fabric sources will only become more important in the coming years. “One of the reasons why In House exists is so that we can help elevate these kinds of companies that are doing this really amazing work,” explains Henney.
The Bottom Line
It’s unrealistic to think that all brands will immediately – or ever — adopt an operational model similar to that of In House. There’s a reason next-gen materials are still less than 1% of overall market share: they’ve been slow to commercialize and are often pricier than conventional inputs. In spite of what they may say, consumers rarely pay a premium for sustainability, which leaves brands to shoulder the delta. While luxury houses like Stella McCartney are able to bake this surcharge into their already high prices without consumers batting an eye, the mid-tier and fast fashion brands that most shoppers frequent are not as lucky. In House, which designs for the “time-constrained woman,” prices accordingly — its blazers run close to $800, reflecting the design work and fabric sourcing behind each piece.
What is going to get next-gen fibers to the 8% mark? Upfront and unsexy multi-year investments in production are essential. While technically in the textile-to-textile recycling space, H&M’s $600 million investment into
Syre is a clear example of the scale at which financing needs to happen. Alternatively, startups can design their materials for machine rooms as they exist today. And in the near term, positioning these inputs as blends or supplements to traditional fibers, rather than full replacements, can bring costs in line and build merchant confidence.
Progress won’t arrive as a miracle fabric but as a series of practical moves: Contracts that finance capacity, drop-in specs that run on existing lines, and small, profitable runs that prove demand. Do that, and the promise of “fashion tech you can feel” becomes something that the average consumer will buy.
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