CATCHES, a physics backed AI company building the next generation of digital fashion experiences, has launched its generative AI sizing technology, RealFit, in partnership with luxury label AMIRI and powered by NVIDIA. The announcement was made at NVIDIA GTC 2026, marking a significant step forward in solving one of fashion e-commerce’s most persistent problems: fit uncertainty.
What RealFit Actually Does
RealFit allows shoppers to see, with mirror-like realism, exactly how a garment will fit, drape, and move on their own body before purchasing. Shoppers enter their measurements and a photograph to generate a personal digital twin, then experience any garment in a collection on their own body, toggling between sizes to know exactly how each piece will fit. The first public use of CATCHES RealFit went live on the AMIRI website on March 16, 2026, with additional luxury brands scheduled to follow in the coming months.
The technology was built on NVIDIA‘s CUDA and Omniverse libraries, leverages the Newton Physics Engine, and combines custom-trained diffusion models with fine-tuned AI models based on NVIDIA Nemotron and NVIDIA Cosmos world foundation models. The result is an exact 1:1 representation of a real fabric’s weight, structure, drape, and movement, with millimeter-level fit fidelity.
Tackling a Multi Billion Dollar Return Problem
Fit uncertainty is among the costliest challenges in fashion e-commerce, lowering online conversions and driving return rates above 50% in some categories. Ed Voyce, Founder and CEO of CATCHES, said, “CATCHES is solving one of the biggest problems in fashion e-commerce — customers not knowing whether a garment will fit them. CATCHES RealFit technology fixes this by providing customers a personalized photorealistic experience that understands real materials, cuts, and true sizing and fit.”
Azita Martin, VP and GM of AI for Retail and CPG at NVIDIA, said, “CATCHES has introduced an AI-based virtual try-on with physics-based simulation for fabric movements and sizing, built on NVIDIA Omniverse and accelerated computing platform. AMIRI is pioneering this innovation and we’re collaborating with CATCHES as an Independent Software Vendor to bring these capabilities to more fashion brands.”
AMIRI’s Vision for Digital Craft
For AMIRI, the partnership is as much about brand philosophy as it is about technology. Mike Amiri, Founder and Creative Director of AMIRI, said, “AMIRI is about community, craft, and innovation. For me, CATCHES RealFit embodies all of these values, bringing them into a modern digital context. The idea of digital craft — tailoring each client’s experience to feel personal and unique — and the ability to connect with them whether in-store or through our digital flagship strengthens the AMIRI universe.”
Backed by Luxury’s Biggest Names
CATCHES has raised $10 million from a notable group of investors, including Antoine Arnault, Director of Image and Environment at LVMH, supermodel and impact investor Natalia Vodianova Arnault, Roy Chung (founder of Apollo.io), Gary Sheinbaum (former CEO of Tommy Hilfiger), and Sarah Willersdorf (former Head of Luxury at BCG).
Antoine Arnault said, “In fashion, the relationship between a garment and the person wearing it is essential. Any technology that helps bring that understanding into the online environment is an important step forward.”
Two Years in the Making
CATCHES spent two years building a proprietary GPU-accelerated simulation framework, modeling and integrating physical fabrics before applying AI to scale it. The founding team includes PhDs who previously worked on simulation technology at Disney and Pixar, and the company operates out of New York and London. Its infrastructure runs across NVIDIA RTX PRO 6000 Blackwell Server Edition, NVIDIA Hopper, and NVIDIA Blackwell GPUs, supported by AI hyperscaler Nscale and bare metal partners Nebius, Boston Limited, and Scan Computers.
