Increase Conversions and Reduce Returns with Clothing Size Finder
The Prime AI size recommendation tool uses AI technology to help customers find the best-fitting clothing by matching their body shapes to garment SKUs. Our customisable solution is ideal for single and multi-brand retailers, and learns from actual inventory, sales, and refund data, understanding the differences in every SKU.

Boost profits and efficiency
Using Fit Finder, websites see on average a 10% increase in conversion rates (CVR). Luxury retailers see the lowest impact at just 3%, but benefit most with a 24% average reduction in returns for size recommendation users. Some clients see over 50% lower returns. Average order values rise by 15% as confident customers buy more expensive items. Results vary by product category, retailer type, and customer demographics, but the results are undeniable: all key KPI are positively impacted!
Simple on the outside very clever on the inside
The Clothing Size Finder by Prime AI utilises neural networks to recommend the best fit by analysing a shopper’s body measurements, preferences, and garment data. Customers enter key details, and the tool instantly suggests the ideal size, reducing guesswork and enhancing the online shopping experience. It’s continuously learning from every interaction, including refund and sales data to ensure the best recommendation.





Next level Fit Technology
- Granular Sizing Precision – Goes beyond standard size charts by considering specific garment measurements, ensuring the best fit for every style.
- Predictive AI (Not Just Statistics) – Unlike size charts based on past data, our AI predicts the best fit for each customer based on real-time shopping behaviour and garment properties.
- Colour-Level Size Awareness – Some colours fit differently due to dyeing, fabric composition, or stretch. Prime AI detects subtle fit variations across different colours for ultimate accuracy.
- Seamless, Zero-Input Experience – No need for photos, body scans, or manual measurements. Customers get instant size recommendations with minimal effort.
- Reduces Returns & Boosts Conversions – Precise size guidance means fewer fit-related returns, more confident shoppers, and increased sales.
API version available
100% Customisable
Tailor infographics, APIs, optimisation reports, and analytics dashboards.
Bespoke Sizing Engines
Custom build sizing recommendation engines for your business and your products
Alternative Product Recommendations
Automatically suggest visually similar, in-stock alternatives in the customer’s size.
Advanced Size Recommendations
Multi-dimensional recommendations (e.g., fit, length, neck size).
Enrich product feed
AI Visual Analysis can enrich your product feed.
Complete Catalogue Coverage
No product limits.
Missed Sales Insights
Identify missed opportunities at the SKU level, stock-out forecasts, and dynamic pricing.
Effortless Integration
0% data entry is required from your team.
International Size Mapping
From ERP or any metrics to international sizing systems.
Clothing Fit Finder Tool integrations on Shopify and other eCommerce platforms
Are customers ordering the wrong size? Help your website visitors find their perfect fit! Convert customers who are unsure of their size. Go live in under three weeks, with seamless integration across all apps, desktop, mobile, and tablet environments.
Prime AI technology integrates effortlessly into any eCommerce platform, including headless eCommerce, with zero data entry required from your team. It continuously learns from your actual inventory, ensuring high accuracy every time, even accounting for fit differences in visually identical items produced in different factories.
Seamless Integration
Integrate effortlessly with any eCommerce platform, including headless eCommerce, compatible with apps, desktops, mobiles, and tablets.
Go Live in 3 Weeks
Get up and running in as little as three weeks with zero data entry required from your team, allowing for quick and efficient implementation.
Enhanced Conversions
Assist customers in finding their perfect size, reducing returns, and converting unsure shoppers with AI that learns from your actual inventory.
Reduce Returns, Increase Conversion, Build Customer Loyalty!
Prime AI’s fusion of fashion and AI expertise offers a compelling solution for even the most complex retail setups. We understand each retailer is unique, so our solutions are 100% custom-built with no product limitations and no data entry required, even without ERP data from your suppliers.
Prime AI tools leverage state-of-the-art neural networks to solve complex non-linear problems, delivering better results than traditional methods. Reducing refunds involves more than just size recommendations; we provide tailored strategies based on your actual data and business setup to minimize returns and enhance customer satisfaction.
Learn more about why Prime AI delivers the best solution for tackling returns

Outstanding!
Seamless implementation, and the communication with the team behind it has been outstanding. Monthly data and insights proactively shared by Prime AI team, help us make informed decisions, and explore new possibilities.
Laura O’Neill Website Manager
Kids version of Clothing Fit Finder
Prime AI’s advanced predictive technology extends to children’s clothing, ensuring the perfect fit while factoring in room for growth. Seamlessly integrated into your PDP, it helps parents make confident sizing decisions, reducing returns and enhancing the shopping experience.
