Your customer finds a product they love. They're ready to buy—until they hit the size selector. Do they go with their usual size? Size up, just in case? Cross-reference the chart, scan reviews, hesitate... maybe bounce?
That split second of doubt—the invisible hesitation that erodes conversion and drives up returns—is exactly where most fit solutions fall short. It’s also where we’ve focused our energy for over a decade.
At Secret Sauce, we believe in eliminating friction, not introducing new steps. No quizzes. No measurements. No awkward body-type quizzes or pop-ups asking shoppers to classify themselves as “pear” or “hourglass.” Just accurate, real-time size recommendations—delivered without disrupting the flow.
Welcome to frictionless fit.
The Origin of a Smoother Experience
At Secret Sauce, we’ve spent 15 years obsessing over one thing: fit & sizing.
Not in the generic “What’s your waist measurement?” sense— but in the real-world, “how does this feel on me?” sense. Because here’s the truth every shopper knows (and most fit tech vendors ignore): sizing is subjective. It’s about comfort, confidence, and personal preference—not just numbers on a tag or tape measure.
Most fit solutions try to improve accuracy by asking more questions. But more questions create more friction. And friction kills conversion—.
That’s why we flipped the script.
Instead of surveys, static size charts, or guesswork, we use behavioral data—what customers buy and return—to predict the size they’ll want to keep. It’s fast. It’s private. It’s accurate. And it delivers recommendations without your shoppers lifting a finger.
Designed for Scale. Engineered for Trust.
With Fit Predictor, you get size intelligence delivered through three seamless experiences:
This approach ensures 100% of your shoppers get sizing support—not just the 5–10% who typically engage with high-friction tools.
The Results Speak for Themselves
Retailers who implement Fit Predictor see:
All without compromising privacy, slowing down the journey, or adding operational complexity.
Why It Works—And Why Others Don't
Other fit solutions often rely on static charts, shopper-provided measurements, or quizzes—methods that require effort and increase drop-off.
Fit Predictor bypasses those limitations. We don’t need size charts, tech packs, or personal body data. We generate sizing intelligence using a retailer’s basic product feed and transaction data—making implementation light and performance scalable.
Fit Is the Final Conversion Barrier
At the bottom of the funnel, friction hurts the most. When your customer is ready to buy, sizing should never be what stops them.
Fit Predictor removes that barrier—quietly, intelligently, and at scale.
Want to see how frictionless fit performs on your site? 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.