This designer is using AI to make clothing with zero fabric waste

FastCompany: Walk onto the cutting floor of almost any garment factory in the world and you’ll see rolls of fabric laid out in stacks. A technician arranges a pattern on the cloth to cut out the building blocks for the garment: sleeves, pockets, bodice. The problem is that the pieces never fit together perfectly. Around the curves of a sleeve, the notch of a collar, and the taper of a side seam, there are always gaps—slivers and crescents of fabric that must be cut around and swept away. That refuse is known in the industry as cut-and-sew waste . Most consumers never think about it, because it happens long before a garment reaches a store.

But it adds up to one of fashion’s biggest yet least-discussed problems. By industry estimates, somewhere between 10% and 15% of fabric is lost in the cutting process. The waste matters because fabric is the single most expensive input in a garment, accounting for up to 70% of the total cost of making it. And it matters environmentally, because every discarded scrap embodies the water, energy, and carbon emissions required to make it. [Image: SXD] Shelly Xu wants to drive that fabric waste number to zero.

Her company, Shelly Xu Design (SXD), is a 15-person startup building AI software that reengineers clothing patterns so the pieces interlock like puzzle parts, leaving nothing behind. Crucially, it doesn’t ask factories to change their process; it fits seamlessly into the current system. “It doesn’t change how people actually sew cloth together,” Xu says. “You’re just cutting them into different shapes so that they take up less space on the fabric.” SXD just closed an oversubscribed $4.5 million pre-seed round led by Initialized Capital. After four years of building the technology, the company is ready to scale.

SXD has partnerships with the H&M Foundation and the Coop bookstores at Harvard University and the Massachusetts Institute of Technology, just signed a multiyear deal with one of the largest music record labels to convert tour merch to zero waste, and is preparing to launch with a European apparel group whose clients range from Uniqlo to Ralph Lauren. Shelly Xu [Photo: Joe Thomas/Sustain/courtesy SXD] A Childhood of Limited Resources Xu traces the whole idea of her company to the very small apartment she grew up in. She was raised in Hefei, in China’s Anhui province, not far from Nanjing.

The home she shared with her parents was just a few hundred square feet, so fitting life into it became a daily puzzle. They slept on bed rolls that had to be folded and put away in the morning, and they bought only enough groceries for the next meal or two. Xu also watched green spaces near her home become dumping grounds. “I saw firsthand how detrimental waste can be,” she says. These experiences taught her to see limitation as a design challenge. She often invokes Piccaso’s line that restraint is what liberates invention. Limited resources, in Xu’s view, aren’t a hindrance to good design.

“Really good designs can come from the idea that we live with limited resources on our planet,” she says. To pursue these ideas, Xu studied sustainable development at Columbia University, where she explored how to bring more eco-friendly approaches to fashion. She also taught herself to design clothing and to code, then began building a platform that would allow designers to create zero-waste clothing patterns. [Photo: Stephanie Cheong/courtesy SXD, Erica Payne (model)] To test the technology, she designed a small collection of zero-waste outfits, stitched 200 garments by hand, and created an Instagram account to showcase them.

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The article discusses a significant innovation in sustainable fashion that addresses a critical environmental issue, making it highly relevant and impactful for brand strategy professionals in the industry.