Scan your foot
Three photos. One fit.
Open the camera on your phone and scan the QR code to get started. No app to install.
A new way to find shoes — where your foot picks the shoe, not the other way around. VSIZE is the body data layer for sustainable, AI-powered commerce.
Open the camera on your phone and scan the QR code to get started. No app to install.
It's not your fault that shoes don't fit. The shoe industry has been measuring the wrong thing for decades — a single number that says nothing about how a shoe actually feels on your foot.
Nearly one in three pairs of shoes bought online are sent back. Most never reach a happy customer — they reach a warehouse.
Wrong size. Wrong width. Heel slips. Toes pinch. Eight out of ten returns are because the shoe didn't actually fit the foot.
The industry standard is foot length. One number. That's it. No shape. No width. No heel. No instep. Length alone can't predict fit.
For decades the shoe industry has asked the wrong question. "What size are you?" instead of "What does your foot look like?" VSIZE flips this on its head.
VSIZE turns your phone camera into a precision measurement tool. No special hardware. No appointments. Just three photos and a few seconds.
Take three photos with your phone. We build a 3D model of your foot with 24+ measurements — length, width, ball, instep, heel, and more.
VSIZE compares your foot to the shoe's interior shape — the last — measuring fit zone by zone: toes, ball, instep, heel.
Get the right size, every time. See how each zone fits before you order. No guessing. No multiple orders. No surprise returns.
Every avoided return saves a journey, a re-pack, and often a discard. When shoes fit on the first try, the entire supply chain breathes easier.
One delivery instead of three. Each avoided return removes a truck-mile, a packaging cycle, and a sorting step in the warehouse.
Returned shoes are often discarded if their packaging is damaged or quality control flags them. Fewer returns means fewer shoes in landfill.
Aggregate fit data tells brands which shapes actually serve their customers. Over time, fewer shoes are made that nobody can comfortably wear.
"The most sustainable shoe is the one you keep wearing."VSIZE design principle
Online commerce is changing. Increasingly, AI agents will discover, compare, and buy on our behalf. But for clothes and shoes, agents need something the industry has never structured: real body data.
An AI agent that buys shoes blind becomes a return machine. An agent that knows your foot makes better choices than you can yourself.
VSIZE is designed as the body data layer for this new era — a personal, structured, machine-readable representation of your foot that travels with you across retailers and platforms.
The shoe is the first chapter. The body is the bigger story.
VSIZE integrates as a widget on your product pages. Customers see a verified fit recommendation before they order — based on their actual foot, not a generic size chart.
We're working with selected retailers in 2026 to validate VSIZE in production. If you're interested in joining the pilot, get in touch.
Contact us →VSIZE uses a Mixture of Experts approach — combining parametric measurement, geometric comparison, and continuous learning. Each prediction makes the next one sharper.
We reconstruct a 3D model of the foot from three smartphone photos using photogrammetry calibrated against a reference object. No special hardware.
Our model extracts foot length, width, ball girth, instep height, heel breadth, and 19 more parameters — anchored to clinically validated measurement standards.
The shoe interior — the last — is compared to the foot zone by zone. Each zone gets its own score, with closure-aware tolerance and direction (tight or loose).
Every fit prediction is checked against real customer feedback over time. The model learns which combinations work for which feet — and gets smarter with use.
VSIZE was founded on a simple frustration: nothing online actually fits. Not shoes. Not clothes. The industry's tools are wrong. The customer is blamed. Returns pile up. Shoes get discarded. Forests are cut to print catalogues for shoes that won't fit anyway.
We believed there was a better way. So we built one.
VSIZE is a measurement standard, an AI engine, a customer experience, and ultimately a new infrastructure for how clothing and footwear is bought online. Founded in Stockholm, with a vision that's global.
Today we work with retailers in Sweden. Tomorrow, we believe VSIZE — or systems like it — will be a fundamental piece of how people shop in a world increasingly driven by AI.
See how VSIZE matches shoes to feet. Try the live demo with five different foot profiles, or scan your own foot to start.