About Us
Helping online fashion retailers sell more since 2014.
Sizebay launched over 10 years ago to address fashion retail’s biggest challenge: helping shoppers find the right size. We combined our expertise in anthropometry, fashion, statistics, e-commerce, and usability to develop Size & Fit – a size recommendation tool that reduces returns and exchanges by giving shoppers a more confident shopping experience.
Those were our beginnings, but our mission has expanded since then. With our years of experience at the intersection of fashion and technology, we continue to push the boundaries to help online fashion retailers sell more and sell better.
Today, Sizebay offers a complete suite of fashion e-commerce solutions designed to enhance the online shopping experience for retailers and consumers alike. In any language, in any size, we’re here to make fashion e-commerce smarter, more personalized, and more profitable.
We positively impact every facet of fashion e-commerce
Stores
Higher conversions, happier customers. Our suite of solutions, from size recommendation to interactive styling, boosts confidence, reduces returns, and increases sales.
Shoppers
A smarter way to shop. From finding the perfect size to visualizing complete outfits, our tools make online shopping easier, more interactive, and frustration-free.
Manufacturers
Our data drives better fashion. Insights into size and shopping behavior help brands refine collections, optimize production, and meet market demand more effectively.
Environment
Sustainable shopping made simple. By reducing returns and unsold inventory, we help cut packaging waste, lower shipping emissions, and minimize fashion’s environmental footprint.
How We Generate Real Results
Fashion Expertise
Fashion is in our DNA. With a foundation of fashion intelligence, we’ve learned how to leverage our expertise in garment design, manufacturing, and textile technology to help online retailers deliver the most precise and personalized shopping experience possible.
Precision, Personalization, and Performance
Every shopper is unique, and every purchase should feel effortless. From creating the perfect look to finding the right size, our solutions deliver hyper-personalized recommendations for retailers to meet and exceed the expectations of even their most demanding shoppers.
Analysis and Support
More than just a technology provider, we’re a strategic partner. Our team of textile specialists, IT experts, and performance analysts work closely with clients to optimize results, boost conversions, reduce returns, and create custom solutions.
Our solutions are currently used by fashion e-commerce stores on four continents, in more than 60 countries, and in 32 languages. Our services have been tested at great lengths by specialized auditors and clients with large volumes of online sales.
Highly responsive and scalable, we can meet the needs of online fashion stores of all sizes. In compliance with international data protection policies and laws, we also provide additional protection through civil liability and cyber security insurance coverage, reinforcing our dedication to strict quality control.
For more information or additional questions about SIZEBAY’s commitment to GDPR, CYBER SECURITY INSURANCE, LIABILITY or regarding the Privacy Policy, please ask us at: privacy@sizebay.com or visit the site.Expertise That Drives Fashion E-Commerce
Textile
From patternmaking to production, we bring deep expertise in garment construction to power smarter e-commerce solutions.
Technology
AI, machine learning, and cloud computing are at our core — delivering scalable, and intelligent fashion tech.
E-commerce
With experience across 100+ platforms, we solve challenges and optimize performance for fashion retailers worldwide.
Performance
We go beyond solutions to drive results and help our clients exceed expectations and achieve lasting success.
Our Values
Be ready to guide
Show that you care
Embrace the challenge
Value uniqueness
Delight efficiently
From daily operations to customer service, our values guide our actions. That’s why respect and integrity are the foundation for everything we do. We’re committed, proactive, and always deliver with excellence.
Curiosity fuels us. We ask the right questions, tackle challenges head-on, and push boundaries. Our strength lies in a unique balance of lightheartedness and high performance.
