Business
The Fit Intelligence Layer for agentic commerce.
Turning 20 years of real purchase-and-return outcomes into decision-grade guidance that agents and shoppers can trust.
Get a Demo
Business
Shopper
Turn shopper doubt into delight.
Turning 20 years of real purchase-and-return outcomes into decision-grade guidance that agents and shoppers can trust.
Get a Demo
When fit and sizing doubt is not resolved with confidence, the effects are immediate and measurable:
Abandonment
At the point of decision
Multi-size Ordering
As a hedge against uncertainty
Elevated Return Rates
Costly for Retailers and Brands
Erosion of Trust
 Over time compounds, negativity
When fit and sizing doubt is not resolved with confidence, the effects are immediate and measurable:
Abandonment
At the point of decision
Multi-size Ordering
As a hedge against uncertainty
Elevated Return Rates
Costly for retailers and brands
Erosion of Trust
Over time compounds, negativity
This is not just a discovery problem. It is a decision problem.
Get a Demo
Fit is more than size. It is how something feels, moves, and fits the shopper's style and intent. Fit intelligence turns real purchase-and-return outcomes into decision-grade guidance, helping shoppers decide whether a specific item will fit the way they want, not just pick a size.
Get a Demo
One Platform. Two Ways to Deploy.
Agentic AI Shopping Agent
  • For brands, retailers, and marketplaces
  • Deployable on PDP, PLP, Search, Homepage
  • Shopify Plus Certified (5 stars)
Learn More
Fit Intelligence via MCP
  • For big tech, AI Labs, marketplaces, and advanced stacks
  • Plug into existing agents or orchestration layers
  • Fit, size, preference, and fashion knowledge as infrastructure
Learn More
One Platform. Two Ways to Deploy.
Agentic AI Shopping Agent
  • For brands, retailers, and marketplaces
  • Deployable on PDP, PLP, Search, Homepage
  • Shopify Plus Certified (5 stars)
Learn More
Fit Intelligence via MCP
  • For big tech, AI Labs, marketplaces, and advanced stacks
  • Plug into existing agents or orchestration layers
  • Fit, size, preference, and fashion knowledge as infrastructure
Learn More
Nobody knows fit like True Fit.
The numbers prove it.

"We've been having conversations about returns internally and True Fit has proven to be a great way to decrease returns and bracket buying."

Senior Digital Merchandising Marketing, Lands End

“We know from the data that finding the right fit drives consumer loyalty and increases customer conversion. We chose True Fit because consumers have a trust level with the brand. It gives them confidence during the buying process as sizing can often seem complicated in the virtual world.”

Senior Digital Merchandising Marketing, APL

“In working with True Fit, we’re excited to leverage their data to learn more about our shoppers’ fit preferences, allowing us to drive a virtuous circle of value for our customers.”

UX Ecommerce Manager, Princess Polly

Up to 40%

reduction in fit-related returns

1-2% site wide conversion lift

measured against control group in A/B tests

4%

incremental revenue lift

4x

conversion rate lift

4x

conversion rate lift

3x

conversion rate lift

Get a Demo
Nobody knows fit like True Fit.
The numbers prove it.
"We've been having conversations about returns internally and True Fit has proven to be a great way to decrease returns and bracket buying."
Alex Kirwan,
Senior Digital Merchandising Marketing
Moosejaw reduces fit related returns by 24% by targeting size bracketing behavior
See All Case Studies
Built on data competitors can’t replicate.
True Fit connects nearly two decades of purchase, fit, keep, and return signals across thousands of brands to deliver precise, shopper-specific guidance at the moment of doubt. This cross-brand intelligence helps retailers confidently serve new-to-brand shoppers from their very first visit, not only customers with an existing purchase history.
Generic Shopping Agents
All generalize, and have access the same  inconsistent public data.
Legacy Fit Tech
Old fit tech stops at size charts and similar products.
Ratings & Reviews
Ratings and reviews only tell you what worked for someone else and require the customer to do the work.
Get a Demo
True Fit resolves fit uncertainty across size, feel, and style intent, helping agents address the questions and doubts that prevent a confident purchase with decision-grade fit guidance.

Confident Yes

Shoppers do not need more options.
They need a confident yes.

Trust as Differentiator

Trust is the differentiator in agent-led commerce. Fit is where trust is tested.

Measurable ROI

A fit-first experience is the fastest path to measurable ROI: conversion up, returns down.
Get a Demo
Built on data competitors can’t replicate.
True Fit connects nearly two decades of purchase, fit, keep, and return signals across thousands of brands to deliver precise, shopper-specific guidance at the moment of doubt. This cross-brand intelligence helps retailers confidently serve new-to-brand shoppers from their very first visit, not only customers with an existing purchase history.
Generic Shopping Agents
All generalize, and have access the same  inconsistent public data.
Legacy Fit Tech
Old fit tech stops at size charts and similar products.
Ratings & Reviews
Ratings and reviews only tell you what worked for someone else and require the customer to do the work.
Get a Demo
Why Leading Retailers Choose True Fit
True Fit's Structured Data Advantage
Unrivaled experience and proprietary structured data for fashion.
  • Years of real purchase and return behavior across apparel and footwear.
  • Learns from what hundreds of millions of shoppers actually keep across market, not just what they click.
Scale of Fit & Style Intelligence
A fit & style data foundation that allows our agent to act with confidence.
  • 72% marketshare in size & fit solutions. (bigger than all others combined)
  • 100Mil+ active users, 60Mil+ products.
  • $616B in annual transaction value informing recommendations.
Proven Commercial Outcomes
Returns are the entry pain. Conversion lift is the enduring value.
  • 1-2% sitewide conversion lift
  • Up to 40% reduction in fit-related returns when guidance is followed
  • Shoppers are twice as likely to return after good fit experience
Get a Demo
Why Leading Retailers Choose True Fit
True Fit's Structured Data Advantage
Unrivaled experience and proprietary structured data for fashion.
  • Years of real purchase and return behavior across apparel and footwear.
  • Learns from what hundreds of millions of shoppers actually keep across market, not just what they click.
Scale of Fit & Style Intelligence
A fit & style data foundation that allows our agent to act with confidence.
  • 72% marketshare in size & fit solutions. (bigger than all others combined)
  • 100M+ active users, 60M+ products.
  • $616B in annual transaction value informing recommendations.
Proven Commercial Outcomes
Returns are the entry pain. Conversion lift is the enduring value.
  • 1-2% sitewide conversion lift
  • Up to 40% reduction in fit-related returns when guidance is followed
  • Shoppers are twice as likely to return after good fit experience
Features and Capabilities
What kind of size guidance does True Fit provide?
Does size guidance require shopper interaction?
How does True Fit determine size guidance?
How does True Fit personalize size recommendations?
How does True Fit build trust in its recommendations?
How does the agent learn over time?
Does True Fit support international shoppers?
Which categories does True Fit support?