Most custom-fit footwear businesses sell you a finished product. Sneakprint is trying something different: according to VoxelMatters, the company has launched a platform called ShoeFactory that sells a foot-fitted pair of flip-flops not as a physical item but as a set of STL files. The customer scans their feet with a phone, tweaks a parametric design in a web configurator, pays EUR 64.99, and then prints the result on their own hardware.
It is a small launch, with exactly one model available, but it is an interesting test of whether personalized geometry, rather than plastic, rubber, or labor, is the thing people will pay for.
How the Pipeline Works
As VoxelMatters describes it, the ShoeFactory flow has three stages: measurement, configuration, and delivery.
Measurement. The scan runs in a smartphone browser, so there is no app to install. The user photographs their feet against a sheet of paper, which gives the software a known reference object for scale. The measurement itself is handled by Volumental, a Swedish company, whose AI-powered measurement engine VoxelMatters reports was trained on 66 million real-world scans. That detail matters: it suggests Sneakprint is not building its own foot-measurement model from scratch but relying on a system with a very large training base behind it.
Configuration. From the scan data, the platform generates a parametric model separately for the left and the right foot, since the two are rarely identical. That is a meaningful choice. Very few people have perfectly symmetric feet, and off-the-shelf footwear simply ignores the difference. Here, each side gets its own geometry.
The user then moves into a web configurator, where several parameters are exposed:
- the text on the strap
- sole thickness
- width
- height
- lattice density
Lattice density is the most interesting of these for anyone who has printed flexible parts. An internal lattice is what lets a printed polymer slab compress and rebound underfoot, so letting the buyer adjust it is plausibly a way to tune how firm the sole feels. VoxelMatters does not report what range of values the configurator allows or how the options map to cushioning, so it remains to be seen how much real control that slider provides.
Buyers are not forced to finish in one sitting. According to VoxelMatters, users have 90 days to complete their design after receiving the invitation email.
Delivery. Once the design is approved, an archive of ready-to-print STL files is sent to the customer's inbox. The files can be used multiple times, according to the report, which means a buyer who wears out a pair, or wants a second pair in a different color, can print again without paying again.
The Model Lineup: One Shoe, for Now
At launch, ShoeFactory offers a single design, the Easy Slide flip-flop, priced at EUR 64.99. VoxelMatters reports that a second model, the Chick Loafer, is in development. No release date or price for it was reported.
Starting with a slide is a sensible engineering decision. A flip-flop has no upper to fit, no laces, no heel counter, and no closure system. The sole carries nearly all of the design work, and the sole is precisely the part that benefits most from foot-specific geometry and a tunable lattice. A loafer is a much harder problem, with an enclosed upper that has to fit the top of the foot as well as the bottom, so the second model will be a more serious test of the approach.
What Sneakprint Doesn't Tell You
The most conspicuous gap in the launch, as reported, is that Sneakprint has not provided details about recommended material or hardware requirements. For a product delivered as a raw STL, that is a significant omission.
Footwear is a demanding application. A sole takes repeated compressive load, flexes thousands of times a day, and spends time in contact with wet ground. The part that ends up on your foot depends at least as much on material, slicer settings, and print orientation as it does on the geometry in the file. Two makers printing the same STL on different machines with different filaments could produce slides that feel and wear very differently.
Without guidance, the buyer is responsible for all of those decisions. Experienced makers who already print flexible parts will likely be comfortable with that. Less experienced buyers who are drawn in by the phone scan and the configurator may find that the hardest part of the process begins after the files arrive.
Readers should also note a sourcing limitation in this story. The launch details here come from VoxelMatters' reporting rather than from the company directly, and FilamentFeed has not independently confirmed them with Sneakprint.
Who Is Sneakprint?
ShoeFactory is not the company's first product. According to VoxelMatters, Sneakprint was founded in July 2020 by Kevin Zürn, who is its founder and CEO. Its earlier product, the RetroTechV1, is a leather sneaker with a 3D-printed midsole based on a foot scan, which entered the market in May 2023 and is made to order in the European Union.
That earlier work is the subject of an August 2025 3Dnatives interview with Zürn about the company's custom sneakers with 3D-printed midsoles. In that interview he said only the midsole is printed, not the whole shoe. ShoeFactory follows the same basic premise, using foot data to drive printed geometry, but moves the manufacturing step out of the company and onto the customer's build plate.
That is the real shift. With the RetroTechV1, Sneakprint made the shoe. With ShoeFactory, it supplies the design and the fit, and the buyer supplies everything else.
What It Means for Makers
For the maker community, ShoeFactory is a notable example of a business model that has been discussed for years but rarely tried with consumer products: selling personalized digital files instead of physical goods. The value Sneakprint is charging for is the measurement pipeline and the parametric model behind it, not material or manufacturing.
Whether EUR 64.99 is a reasonable price depends on how you count. It buys a design fitted to your feet that you can reprint, rather than a single pair. On the other hand, it does not include filament, printer time, failed prints, or the trial and error needed to dial in a flexible part, and Sneakprint has given no material or hardware details to shorten that process.
A few practical points for anyone considering it:
- Plan for material testing. With no recommended filament, expect to experiment before you get a pair that feels right and survives daily wear.
- Use the 90-day window. There is no need to rush the configurator. Taking time to think through sole thickness and lattice density before approving the design costs nothing.
- Keep the archive. The files can be used multiple times, so store them somewhere safe. That reusability is a large part of what the purchase price buys.
- Watch the Chick Loafer. If Sneakprint can make an enclosed shoe work as a print-at-home file, that will say much more about the viability of the model than a flip-flop does.
The bottom line: ShoeFactory is a modest launch with an ambitious idea behind it. A single slide design will not change the footwear industry, but a working pipeline from a phone photo to a two-foot parametric STL is a real piece of infrastructure. How useful it turns out to be will depend largely on details Sneakprint has not yet published.
