Why Zero Input Size Finder Is the Ultimate Frictionless Experience
When customers shop for clothes online, one thing almost always creates doubt: Which size should I buy?
At Prime AI, we believe the future of sizing recommendations is frictionless. And that’s exactly what our Zero Input Size Finder delivers.
With Zero Input, shoppers don’t need to measure themselves, answer questions, or click through a quiz. From the moment Prime AI is integrated, returning customers automatically see their recommended size personalized to their unique profile without lifting a finger.
How is this achieved?
- Past purchase history – We connect with your order data and learn what sizes each customer bought previously.
- Return patterns – If a shopper returned something as “too small” or “too big,” the system learns and corrects for it in future recommendations.
- Product-level attributes – Our engine understands the sizing rules of each SKU (cut, material, fit, even color-based variations where the same style can fit differently).
- Continuous learning – Every transaction, whether kept or returned, becomes another data point that sharpens accuracy.
That means:
- No tape measures.
- No body shape questions.
- No guesswork.
- No size charts cluttering your product pages.
Instead, shoppers get a clean, seamless experience where the right size is suggested instantly and with size related accuracy rates at 99%, validated on live customer data.
From Day 1: Accurate Recommendations Without Any Input
Why Size Charts Are Meaningless
Many retailers still rely on size charts. But here’s the problem: there is no such thing as a universal, validated size chart.
- A “Medium” in one brand can be a “Small” in another.
- Even within the same brand, a slim-fit shirt and a relaxed-fit shirt will require different recommendations.
- Two visually identical items, produced in different factories or seasons, can fit differently, while the size chart remains the same.
In other words, size charts show the intention of fit, not the reality of fit. Zero Input solves this gap by learning directly from your sales and returns data, giving each shopper the size that truly works product by product without lifting a finger. Not pictures to take of your body, not quizzes to answer, no need to enter body measurements or anything else.
The Power for Multi-Brand Retailers
For multi-brand retailers, frictionless sizing is a game changer.
Most don’t have consistent size charts or even structured sizing data for their product catalogues. And that’s perfectly normal. When you’re managing hundreds or even thousands of brands, expecting accurate and up-to-date charts from every supplier is unrealistic. We’ve seen retailers selling close to 3,000 brands in a single store. Now imagine the countless styles, fits, and SKUs involved.
This is where Prime AI stands apart, because with us, there are no limits.
Instead of relying on missing or unreliable charts, our engine learns how each product actually fits in reality by using your sales and return data.
- If a particular dress style in Brand A is frequently returned as “too small,” Prime AI automatically adapts its sizing model to reflect that insight for future recommendations.
- If trousers from Brand B fit differently depending on the colourway or even the production batch, we detect this and split them into separate sizing models for maximum accuracy.
- Even when there’s no official size information at all, Prime AI builds a precise, data-driven model of real-world fit behaviour based purely on your shoppers.
The result is simple but powerful:
Your customers always see one clear, consistent answer “This is your size.”
That translates directly into a seamless experience across every brand in your store.
Only Prime AI can solve the sizing conundrum without relying on “perfect” charts, because in reality, those charts often don’t exist.
So, statements like “We cover these 2,000 brands” are meaningless. Accuracy is not about how many brand charts you claim to “cover.” It’s about technology that works out the right size from real outcomes, not from static, unreliable charts.
If your first instinct is to ask a provider, “Which brands do you cover?” that’s already the wrong question. The right question is: “Can your technology learn how each product truly fits, even without size charts?”
With Prime AI, the answer is yes.
Not sure how this works in practice? Request a demo.
Premium Experience for Luxury Retailers
Luxury retailers understand that customer experience is everything. Shoppers buying premium products expect a seamless journey, no clunky size charts, no guesswork, and no interruptions.
With Zero Input, a luxury store can offer exactly that: a premium, concierge-like experience where the right size simply appears. This reinforces the brand’s image of sophistication and attention to detail.
The Future of Sizing Tools - No More Input
We believe sizing technology should be invisible. The most advanced solutions won’t ask customers to do more, they’ll ask them to do nothing at all.
That’s the promise of Prime AI’s Zero Input Size Finder:
- Frictionless experience for the shopper.
- Consistent accuracy for the retailer.
- Measurable impact on refunds, conversion, and customer satisfaction.
For retailers who want to lead the way, this isn’t just a feature, it’s the future.
