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…
