This Startup Wants to Slow Fast Fashion Waste by Recycling Polyester Clothes

Francesca Billington

Francesca Billington is a freelance reporter. Prior to that, she was a general assignment reporter for dot.LA and has also reported for KCRW, the Santa Monica Daily Press and local publications in New Jersey. She graduated from Princeton in 2019 with a degree in anthropology.

Aleali May Ambercycle

Shay Sethi sorts boxes of old t-shirts and sweaters in his small factory near downtown L.A. His startup, ambercycle, recycles old polyester garments to create new fabric and has caught the attention of socially conscious consumers from around the world. Many regularly send him their worn pants and used jackets.

"This is insanity. We're not even doing any marketing" said the 27-year-old co-founder, who says he receives the unsolicited packages weekly.

The L.A. company might not be a household name, but it has pocketed millions in government grants and venture capital, and made a deal with clothing retail giant H&M to make recycled clothes.


On Friday, five years after launching, the manufacturing business debuted a clothing line with local designer Come Back As A Flower partly made with their recycled polyester. Their model is Aleali May, the first female to design a unisex sneaker for Air Jordan.

"We started with this idea of 'can you take an old t-shirt and use those materials to just make a new t-shirt, instead of using materials from the earth like cotton or polyester'," he said.

Clothing retailers from Zara to H&M have slowly been trying to reduce their massive waste as pressure mounts from consumers, policymakers and activists.

Ambercycle

Cheap, fast fashion has fueled Americans consumption of clothes. A sizable amount of that ends up in landfills — about 11.3 million tons of textiles in 2018, according to the most recent figures from the Environmental Protection Agency.

Sethi said he is working with several large clothing retailers that are trying to figure out how to cut waste.

"I haven't found a single place that says, 'oh, we're not interested in moving to a more sustainable fashion industry'," he said.

Ambercycle was founded with government grants from the National Science Foundation and the Department of Defense, which lists environmental sustainability as a national security threat. A few angel investors and funds, including Y Combinator, the Lemelson Foundation and H&M Foundation, also backed ambercycle's initial $4 million round.

It's attracted the interest of Swedish clothing giant H&M, an investor that's also looking to utilize ambercycle's technology in future collections.

Sethi and his co-founder Moby Ahmed began working on the idea as undergraduate students at UC Davis. Back then, the pair planned on selling their technology to big chemical companies. But they noticed that recycling and garbage processes in the textile and fashion industries were lagging behind. So they started a business instead.

But it's not easy. Their patented technology breaks down the molecules of textile waste to generate small polyester pellets. First, reactors built in their factory downtown separate the fibers of each item while removing dyes and stains. Those pellets are then spun into polyester yarn used to make new clothes.

AmbercycleAmbercycle's patented technology breaks down the molecules of textile waste to generate small polyester pellets.

The startup's factory downtown can process about 50 garments a day, mostly old shirts and textile waste or excess from big name businesses. It's hardly enough to make garments in mass. Even ambercycle's own clothes are 90% virgin polyester. To make 100% recycled polyester, Sethi would need a new factory.

Sethi has plans to build a large commercial plant that can eventually manufacture 50,000 tons of material each year, the amount large garment factors typically produce. If he succeeds, it would be a rarity. Few clothing companies produce and source in the U.S.. Most instead rely on cheap overseas labor and material.

But the fundraising for that factory doesn't appeal to venture capital or other traditional sources, he said.

"The idea of building a plant is seen as unsexy," he said. "We haven't gotten too much interest from the traditional technology investor. This is not in vogue yet."

So, Sethi is looking elsewhere for funding as consumer interest in sustainable fashion brands grows.

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LA’s Upgrade in Travel and NBA Viewing
Image Source: Los Angeles World Airports

🔦 Spotlight

Exciting developments are underway for Los Angeles as the city prepares for major upgrades in both travel and entertainment. The Los Angeles Board of Airport Commissioners has approved an additional $400 million for the Automated People Mover (APM) at LAX, increasing its total budget to $3.34 billion. This boost ensures the elevated train’s completion by December 8, 2025, with service starting in January 2026. For Angelenos, this means a significant improvement in travel convenience. The APM will streamline connections between parking, rental car facilities, and the new Metro transit station, drastically cutting traffic congestion around the airport. Imagine a future without the dreaded 30-minute traffic delays at LAX! The APM will operate 24/7, reducing airport traffic by 42 million vehicle miles annually and carrying 30 million passengers each year, while also creating thousands of local jobs and supporting small businesses.

Meanwhile, the NBA is also making waves with its new broadcasting deals. The league has signed multi-year agreements with ESPN, NBC, and Amazon Prime Video, marking a notable shift in media partnerships. ESPN will maintain its long-standing role, NBC returns as a network broadcaster after years away, and Amazon Prime Video will provide NBA games through its streaming platform. Starting with the 2025-2026 season, these deals will enhance the league's reach and revenue, aligning with the NBA's goal to expand its audience and adapt to evolving viewing habits. Whether you're catching the action on TV or streaming online, these changes promise to elevate the fan experience and bring more basketball excitement to Los Angeles.


🤝 Venture Deals

LA Companies

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LA Venture Funds

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  • Mantis VC and Amplify participated in a $140M Series C for Chainguard, an open source security startup. - learn more
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🤫 The Secret to Staying Fit at Your Desk: 6 Essential Under-Desk Exercise Machines

Health experts are sounding the alarm: our sedentary jobs are slowly killing us, yet we can't abandon our desks if we want to keep the lights on. It feels like we're caught between a rock and a hard place. Enter under-desk exercise machines – the overlooked heroes (albeit kind of goofy looking) of the modern workspace. These devices let tech professionals stay active, enhance their health, and increase their productivity, all without stepping away from their screens. Here are 6 fantastic options that will enhance the way you work and workout simultaneously.

DeskCycle Under Desk Bike Pedal Exerciser

This bike has nearly ten thousand five-star reviews on amazon. It works with nearly any desk/chair setup. It is quiet, sturdy and allows up to 40 pounds of resistance. If you are looking for an under-desk bike this is a fantastic option.

Type: Under-Desk Bike

Price: $180 - $200


Sunny Health & Fitness Dual Function Under Desk Pedal Exerciser

This under-desk bike is extremely quiet due to the magnetic resistance making it an ideal option if you work in a shared space. It doesn’t slip, has eight levels of resistance, and the option to work legs and arms. It’s about half the price of the DeskCycle bike making it a solid mid-range option for those looking to increase their daily activity.

Type: Under-Desk Bike

Price: $100 - $110


Sunny Health & Fitness Sitting Under Desk Elliptical

This under-desk elliptical comes in multiple colors if you really want to underscore that you are a quirky individual, in case an under-desk elliptical isn’t enough. This model is a bit heavy (very sturdy), has eight different resistance levels, and has more than nine thousand 5-star reviews.

Type: Under-Desk Elliptical

Price: $120 - $230


DeskCycle Ellipse Leg Exerciser

This under-desk elliptical is another great option. It is a bit pricey but it’s quiet, well-made and has eight resistance levels. It also syncs with your apple watch or fitbit which is a very large perk for those office-wide “step” challenges. Get ready to win.

Type: Under-Desk Elliptical

Price: $220 - $230


Daeyegim Quiet LED Remote Treadmill

If you have a standing desk and are looking to walk and work this is a fantastic option. This walking-only treadmill allows you to walk between 0.5 to 5 mph (or jog unless you have the stride length of an NBA forward). It is very quiet, which is perfect if you want to use it near others or during a meeting. You can’t change the incline or fold it in half but it is great for simply getting in some extra steps during the work day.

Type: Under-Desk Treadmill

Price: $220 - $230


Sunny Health & Fitness Foldable Manual Treadmill

This under-desk treadmill isn’t the most premium model but it is affordable and has an impressive array of features. It is a manual treadmill meaning it doesn’t need to be plugged in; it is foldable and offers an incline up to 13%. I personally can’t imagine working and walking up a 13% incline but if that sounds like your cup of tea, then I truly respect the hustle.

Type: Under-Desk Treadmill

Price: $150 - $200




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🤠Musk Picks Texas and 🔥Tinder AI Picks Your Profile Pictures

🔦 Spotlight

Tinder is altering dating profile creation with its new AI-powered Photo Selector feature, designed to help users choose their most appealing dating profile pictures. This innovative tool employs facial recognition technology to curate a set of up to 10 photos from the user's device, streamlining the often time-consuming process of profile setup. To use the feature, users simply take a selfie within the Tinder app and grant access to their camera roll. The AI then analyzes the photos based on factors like lighting and composition, drawing from Tinder's research on what makes an effective profile picture.

The selection process occurs entirely on the user's device, ensuring privacy and data security. Tinder doesn't collect or store any biometric data or photos beyond those chosen for the profile, and the facial recognition data is deleted once the user exits the feature. This new tool addresses a common pain point for users, as Tinder's research shows that young singles typically spend about 25 to 33 minutes selecting a profile picture. By automating this process, Tinder aims to reduce profile creation time and allow users to focus more on making meaningful connections.

In wholly unrelated news, Elon Musk has announced plans to relocate the headquarters of X (formerly Twitter) and SpaceX from California to Texas. SpaceX will move from Hawthorne to Starbase, while X will shift from San Francisco to Austin. Musk cited concerns about aggressive drug users near X's current headquarters and a new California law regarding gender identity notification in schools as reasons for the move. This decision follows Musk's previous relocation of Tesla's headquarters to Texas in 2021.

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