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The vision: a zero-waste future for eyewear

King Children CEO Sahir Zaveri and his team of eyewear innovators deploy 3D printing and augmented reality technology to produce sustainable frames. He explains how collaborating on Dropbox makes their mission possible in our video series The Drop In, produced in partnership with Wired Brand Lab.

A woman holds a prototype of eyeglasses
The Drop In with Eyewear Designer King Children

By Sally Zhang

Sahir Zaveri struggled for years to find glasses that fit his face and personality. During his junior at Brown University, he realized he wasn’t alone. Many of his friends (including his dorm neighbor and future co-founder Dave Lee) shared the same problem.

Zaveri soon discovered an even bigger problem: the eyewear industry was incredibly wasteful. With the help of Lee, he conducted studies that found more than half of eyewear produced each year gets tossed in the trash. The friends spent the following summer researching 3D printing technology, and came to the conclusion that there was an untapped market for custom eyewear that wasn’t just stylish, accessible, and scalable—but sustainable, too. The duo jumped on the opportunity, and King Children was born.

“King Children stands for a new way of doing business for the future of the fashion industry as a whole,” says Zaveri. “A way in which we can do business without squandering resources while still satisfying customers and their desire for variety.”

Sahir developed a new way of making eyewear using a laser-based technology that takes unused material from one production cycle and feeds it into the next one, eliminating waste. And because 3D printing technology allows King Children to produce eyewear after the customer places an order, there’s no unused inventory to throw out.

“We think of this as the holy grail of a zero waste inventory system, where the product is made for each individual customer,” says Zaveri. 


Before any of their eyewear hits the 3D printer, King Children’s creative team of designers and researchers use Dropbox to collaborate on data-packed 3D design files. “Version control is very important,” says Sahir. “At each stage you're making a change, but you also may want to go back to an earlier version because there's an idea in there that you really like.” Easy access to organized, updated files means the design team can change course on an idea quickly. Once designs are complete, the team relies on Dropbox to send extra-large files to their production team. “Having a system like Dropbox that allows you to transfer a large file easily is really helpful,” says Sahir.

As King Children’s business grows, so does their social impact mission. Zaveri is focused on partnering with forward-looking teams and brands (they are collaborating with a series of fashion brands to launch eyewear lines powered by King Children's technology) and he plans to chart a new path toward building a sustainable future in the fashion industry.

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