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We deliver precise sizing and fit through advanced AI and machine learning, ensuring shoppers always order the right size in one go. Our proprietary Body Profile Database brings together user-submitted shape and measurement data from our detailed questionnaire with each partner brand’s own sizing charts. By harmonizing these datasets, we ensure that every recommendation reflects both real body diversity and the true fit characteristics of each brand.
Leveraging cutting-edge big-data analytics and our custom fitting algorithm, Faslet predicts individual preferences and body contours with precision. Whether you’re curating a wardrobe staple or exploring a new style, our system delivers reliable size and fit guidance, so you shop online with confidence every time.
Trusted by Fashion Brands of All Sizes






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Smarter Sizing. Better Shopping. Sustainable Growth.
The future of online fashion starts with the right fit. Faslet’s AI-powered sizing platform helps apparel and footwear brands reduce returns, boost conversions, and build shopper confidence, seamlessly.
Here’s why leading brands choose Faslet as a sizing and fit partner to their online stores:
Precision That Drives Growth
Our AI-powered size recommendation tool increase conversions and reduce costly returns.
Sustainability at Scale
Every right-size purchase cuts down on CO₂ emissions, waste, and reverse logistics.
Seamless, Data-Driven Integration
Faslet connects brands and shoppers in an infinity loop of insights, personalization, and business impact.
The Power of Faslet Tools
At Faslet, we're committed to providing our partners with a robust toolkit designed to enhance your retail business. Our 'Size Me Up' portal offers a wealth of opportunities to support your success.

Size Me Up' virtual assistant
Faslet’s AI-powered ‘Size Me Up’ assistant helps shoppers find their perfect size effortlessly in just a few steps. By eliminating sizing guesswork, it builds customer confidence, increases loyalty, and boosts sales.
With precise recommendations, brands can:
✔ Reduce costly returns – Lower operational costs & improve sustainability
✔ Drive higher conversions – Confident shoppers buy more
✔ Minimize environmental impact – Fewer returns = lower CO₂ emissions
Smarter sizing. Sustainable impact. Stronger business growth.
Actionable data insights
Unlock the potential of consumer insights to perfectly tailor your products to the specific needs and preferences of your customers. Faslet’s Profile Insights is a cutting-edge analytics tool that provides valuable data on anonymous user behavior. This innovative solution empowers your apparel retail business by delivering a deeper understanding of your customers, highlighting missed sales opportunities, and enabling precise marketing segmentation. With advanced AI and machine learning, you can optimize product offerings, enhance customer satisfaction, and drive business growth through data-driven decision-making.


Faslet Hub
Enhance your operations with Faslet’s Hub, a comprehensive self-serve portal that centralizes all critical information. Effortlessly upload your brand logo, customize buttons, and access essential metric insights. Easily add new products via product IDs and set up A/B tests for optimizing performance. The Faslet Hub acts as your central command center, enabling data-driven decisions and maximizing your brand’s potential. With its flexible and scalable design, Faslet’s Hub is tailored to meet your specific business needs, providing personalized support and advanced technology to streamline your operations.
“Faslet has helped us improve the sizing of Studio Anneloes through valuable data analyses and thoughtful advice. Their insights have helped us provide our customers with an even better fit.”
"Faslet has brought noticeable improvements to our online shopping experience. Customers trust their sizing choices more, and that’s reflected in fewer returns and a smoother process overall. It’s been a worthwhile addition to our strategy."
"The Faslet tool instantly increased our conversion rate. It's also a great addition to our webshop to better the customer experience. All around a great success!"
"Faslet has played a huge role in lowering the return rate and I am very positive about both the tool and the team! They are very proactive, open-minded and involve the customers in the process."
“We see Faslet as an additional component to our webshop. The number of phone calls asking how to measure have decreased enormously since the integration of size-me up.”
"The Faslet Sizing Solution has made a noticeable difference. We've seen a 5,70% increase in conversions and a 10,38% reduction in returns, directly improving our shopping experience and overall performance"
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