How Fit Predictor Helps 100% of Shoppers - Returning and New

Most fit solutions only help the shoppers who choose to use them.

You know the ones: they click the popup, answer the survey, and eventually get a size recommendation.

But what about everyone else?

The ones who don’t want to fill out a form. Who ignore popups. Who never opt in?

That’s the problem with most fit tech: it’s optional, hence it has got an engagement problem. Typical engagement rates for these tools are around 3–5%.

There is no complicated math needed to realize that, no matter how precise the size recommendation is, it just does not scale.

At Secret Sauce, we built Fit Predictor to be different. We wanted to help 100% of the customers and not only those who choose to engage

Passive or Active, Every Shopper Gets Help

Fit Predictor doesn’t require input to deliver value. It just works. Here’s how:

• Active users: Shoppers who engage get fast, real-time sizing recommendations based on their behavior and preferences—no body metrics needed.
• Returning users: If they’ve shopped before, we use what they bought and kept to predict their next best fit.
• Passive users: Even without clicking, customers see fit guidance drawn from broader behavioral trends—so no one is left guessing.

This is what we mean by 100% coverage. Not "5% of shoppers filled out a quiz." Not "opt-in only." Every shopper gets the support they need.

Cold Start, Warm Welcome

The "cold start problem" plagues most tech: how do you help a first-time visitor? Fit Predictor is optimized for this exact use case. We’ve reduced the path to a recommendation to just 2–3 clicks—with no account, no size chart, and no guesswork.

In other words: we help them shop, not stop.

From Coverage to Conversion

Retailers that use Fit Predictor don’t just see better UX. They see results:

• +50% higher conversion among Fit Predictor users
• −30% returns from size-matched orders
• Increased customer confidence and lower cart abandonment

It’s not just about helping some shoppers some of the time. It’s about removing doubt for every shopper, every time.

Want to see what full-fit coverage looks like in action? Let’s talk.

About Secret Sauce Partners

Secret Sauce Partners is a pioneer in AI-powered fit and sizing solutions, trusted by leading marketplaces and retailers worldwide. As a pioneer in the Artificial Intelligence field focusing on fit & sizing, we developed the world’s first Fit AI solution 15 years ago, and continued to optimize it over the past 15 years covering every possible category and price point globally. Our AI has been trained by over 4.1 billion purchases and returns across 140,000+ brands. In Fit AI, the size of training data is critical to achieving success and we have the expertise to show it. Let us help you eliminate sizing friction, reduce returns, and build customer experiences that convert.