Predict size and fit

True Fit has the world’s largest Fashion dataset—because when it comes to solving fit, size matters.

Get A Demo

Predict size and fit

True Fit has the world’s largest Fashion dataset—because when it comes to solving fit, size matters.

Get A Demo

Transform Data into Fit Guidance

True Fit’s 65% market share of size and fit solutions provides the most robust data set in the industry

Graphic showing True Fit’s data scale — 540 million unique products, 80 million active users, and $616 billion in annual transactions.

Transform Data into Fit Guidance

Powered by shoppers and enhanced by AI, True Fit is the industry’s leading fit solution.
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Trusted on 11 billion+ PDPs by hundreds of global retailers, tens of thousands of brands and 82 million+ active True Fit users.
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Complete the form to schedule a complimentary demo with a True Fit expert.

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Image illustrating that True Fit creates a universal size scale to compare brands

How products fit

True Fit normalizes product data (product catalog, size charts, product descriptions) to assign a proprietary universal size.
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This universal size allows True Fit to understand how different brands and styles relate to each other. Does a small in Brand A equate to a medium in Brand B?
Image illustrating that shoppers have unique preferences on how clothes fit

What shopper prefer

Over 400 million shoppers have told True Fit about their best fitting brands and styles, which helps inform the universal size relationships and preference patterns.

Technical fit is one thing, but an accurate fit recommendation must take into account how shoppers prefer to wear their clothes - baggy, tight, etc.
Image showing that True Fit uses sales and returns data to make recommendations

How shoppers behave

True Fit’s data includes billions in sales and returns data from thousands of global retailers. 

Sales data + profile data informs our algorithms of how shoppers are actually buying and engaging with different brands and sizes and refines recommendations accordingly.

Provide a size and fit experience to shoppers

True Fit transforms billions of products, orders, and shopper data points into clear, accurate size recommendations.

Request a DemoWatch a Video
Video giving a step-by-step demonstration of the True Fit survey on a PDP

Go Live Quickly

Install in minutes via our Shopify App or partner with our team to expedite go-live.

Go Live Quickly

Install in minutes via our Shopify App or partner with our team to expedite go-live.
Go-live in days, not months.
a True Fit integration partner
a True Fit integration partner

"This is the smoothest and fastest app integration I've ever done. We were able to get up and running quickly to be ready for Black Friday.

We wish all tech partners made it this easy."

Cailyn Nikolis
E-commerce Director

We’ve been using Untitled to kick start every new project and can’t imagine working without it.

Lyle Kauffman
Data Engineer, Sisyphus

Help every shopper find their fit–before it ships. 

Want to see How It Works  for your
company?

True Fit reduces returns at the source by eliminating size and fit confusion.
Get A Demo

"This is the smoothest and fastest app integration I've ever done. We were able to get up and running quickly to be ready for Black Friday.

We wish all tech partners made it this easy."

Cailyn Nikolis
E-commerce Director
True Fit UI inside the survey on a PDP showing a personalized size recommendation

Help every shopper find their fit–before it ships. 

Want to see How It Works for your company?

True Fit reduces returns at the source by eliminating size and fit confusion.
Get A Demo