True Fit

True Fit is an AI-powered fit and sizing intelligence platform that helps apparel and footwear retailers reduce fit-related returns and increase conversion. The platform draws on two decades of real purchase, return, and keep data across a global network representing over 72% of the fit-technology market. With 100M+ active users, 60M+ products, and $616 billion in annual transaction value informing its recommendations, True Fit provides personalized size guidance across categories including menswear, womenswear, children's apparel, footwear, intimates, and swimwear. The platform offers two deployment options: an Agentic AI Shopping Agent that brings fit intelligence to product, listing, search, and home pages, and Fit Intelligence via MCP for integration into existing AI systems. True Fit supports regional size systems, local size conventions, and languages across global markets, and is available as a Shopify Plus Certified app. The company reports up to 40% reduction in fit-related returns when guidance is followed and a 1-2% site-wide conversion lift for retail partners.