REAL BRANDS.

REAL RESULTS.

From size accuracy to smart styling — Sizebay gives your store the tools to reduce returns and boost AOV with AI-powered personalization.

EXPLORE CLIENT RESULTS BOOK MY DEMO

FROM HIGH RETURS

TO HIGH REVENUE

Every fashion eCommerce brand struggles with three invisible blockers: return rates, friction in the buying journey, and undifferentiated product pages.

Our clients don’t just talk about fixing them. They did — and got the data to prove it.

WHY LEADING BRANDS TRUST SIZEBAY

Your Challenge


Return rates erode margin


Mobile UX loses sales



Size isn’t enough to stand out



Integrations are painful or limited



You lack actionable data


Return rates erode margin

📉 Up to 50% fewer returns through AI-powered fit recommendations


Mobile UX loses sales

📱 A 2-step, mobile-first experience improves confidence and reduces cart abandonment


Size isn’t enough to stand out

👗 Fashion Hub brings styling inspiration, alternatives & discovery — boosting AOV by up to 18%

What You’ll See in the Demo


📉 Up to 50% fewer returns through AI-powered fit recommendations


📱 A 2-step, mobile-first experience improves confidence and reduces cart abandonment


👗 Fashion Hub brings styling inspiration, alternatives & discovery — boosting AOV by up to 18%


🔌 Native support for Shopify, Magento, Salesforce & more — with white-label & multilingual options


📈 Our dashboard reveals who used the tools, what they bought, and why they returned

Integrations are painful or limited

🔌 Native support for Shopify, Magento, Salesforce & more — with white-label & multilingual options


You lack actionable data

📈 Our dashboard reveals who used the tools, what they bought, and why they returned

REAL RESULTS IN THE MARKET

“Sizebay is our secret growth engine.”


🔹 Posted during an industry event — immediately led to 2 client intros

🔹 Conversion and confidence up

🔹 Public praise on the Sizebay team and tech advantage

“Is your size guide quietly killing your revenue?”


🔹 A/B test showed –4.83% in revenue when Sizebay was removed

🔹 Messaging framed around lost revenue — not just potential gains

🔹 CEO joined the conversation publicly: “This test validated our decision”

🔹 Long-term Sizebay clients

🔹 Size & Fit rolled out across

multiple markets

🔹 Integrated, multilingual, and continuously scaling with them

WHY NOW?

WHY NOW?

The fashion eCommerce battlefield is more competitive — and fragile — than ever.


🔻 Return rates are rising

Each unnecessary return costs you in logistics, customer support, and lost LTV.


📉 Conversions are being lost silently

Shoppers abandon carts when size is uncertain or styling uninspired.


📈 Acquisition costs are exploding

Brands need to do more with less — and tools must deliver real ROI.


Speed matters

Sizebay clients go live fast and see results in under 90 days.


✨ The brands acting today are already ahead. Those waiting? They’re leaving margin on the table.


WHAT THEY'RE SATING

"Sizebay gave us a clear competitive advantage.”


Stefanos Alvanos, eCommerce Director, VARDAS

“Removing the tool meant losing revenue — that simple.”


Miha Hrovat, CEO, NIKIN

“Results were visible in less than 90 days.”


Global Digital Manager, Fashion Brand

WHAT YOU GET WITH SIZEBAY

Size & Fit — Precision in Two Steps

AI-driven, anthropometry-based tool that delivers ultra-accurate size recommendations across categories — from lingerie to kidswear — in a simple mobile-first interface.


Fashion Hub — Personalization That Inspires

A modular suite that adds styling suggestions, matching alternatives, and visual search — turning any catalog into a dynamic discovery experience.


Actionable eCom Insights

See which users interacted, which products convert better, and what’s returned (and why). Integrate with GA4, Adobe, and more.


Plug & Play Integrations

Supports all major eCommerce platforms: Shopify, Vtex, Magento, Salesforce, PrestaShop, and more. Plus: white-label, category-specific adaptations, and multilingual support.


Scalable & Lightweight

One line of JavaScript or GTM. No heavy dev required. Built to scale with your business — not block it.

GET EXPERT GUIDANCE FROM FASHION E-COMMERCE SPECIALISTS

Luisa Piló: Your Trusted Consultant in Size & Fit Technology


Luisa Piló is a leading expert in Size & Fit technology, helping brands reduce returns, improve customer satisfaction, and boost conversions through innovative, AI-powered solutions. With proven experience supporting top brands, she offers the expertise your business needs to thrive. Contact Luisa today to discover how Size & Fit technology can transform your e-commerce strategy!

Dário Fonseca: Expert in Sales Strategy & Innovation


Passionate about innovation as a driver of societal transformation, Dário da Fonseca is a Senior Account Executive at Sizebay, based in Amsterdam, with over five years of experience managing the sales cycle across Europe. He specializes in identifying market opportunities, engaging with clients, and positioning Sizebay's innovative solutions competitively.

BOOK A DEMO - SEE WHAT'S POSSIBLE

🔒Your data is safe with us.

🔒Your data is safe with us.

FAQs

Do you offer custom plans?

Yes — we scale from XS to XXL. Whether you're a growing store or a global brand, we’ll tailor it to your needs.

How soon can we implement?

In most cases, within 30 days. Some integrations can go live in a few clicks.

Do I need a tech team?

Not necessarily. Our JS snippet or GTM integration keeps things simple. We guide every step.

What makes Sizebay different?

We combine fit + inspiration — not just one or the other. Our solution delivers measurable impact.

Which platforms are supported?

Shopify, Magento, Salesforce, Vtex, PrestaShop, BigCommerce, and more.

© 2025 All rights reserved.

© 2025 All rights reserved.