FITLD intelligence platform
Size confidence for every shopper. Sizing data for every brand.
FITLD connects two sides of the same problem: shoppers who want to know their size before buying, and brands who want to publish accurate fit data that reduces returns and builds trust.
The fit problem
Online clothing sizing is broken. Returns prove it.
Nearly 40% of online apparel purchases are returned, and poor fit is the leading cause. For brands, that means lost revenue, increased logistics costs, wasted time, higher energy consumption, and environmental waste. For shoppers, it means frustration and hesitation before every purchase. FITLD was built to close that gap with structured data on one side and personalized recommendations on the other.
About FITLD
Fit data should work for everyone
FITLD was founded on a simple observation: the fashion industry measures garments in studios, but shoppers measure themselves in bedrooms. Those two sets of numbers rarely agree, and the result is a returns crisis that costs the industry billions and frustrates millions of customers.
We built FITLD to bridge that gap. Our platform gives shoppers a single, private place to store their measurements and gives brands the tools to publish structured size data, integrate recommendations, and understand their fit performance. We do not collect browsing history, sell shopper data, or share measurements without explicit permission.
Privacy-first by design. Measurements belong to the shopper. Brands only receive a recommended size, never the underlying body data. We believe fit intelligence should reduce returns without reducing trust.
Two sides, one platform
How FITLD works
FITLD is a two-sided platform: shoppers store their measurements once and get size recommendations across partner brands, while brands manage structured size data and integrate a widget that turns size confidence into conversion.
Create your fit profile
Sign up in under two minutes. Input your body measurements or let our guided process walk you through it. No app download required.
Browse partner stores
When you shop at a FITLD-enabled brand, the widget uses your profile to recommend the right size for each product based on its specific size chart.
Buy with confidence
See your recommended size before you add to cart. Your data stays private, and you control what each brand can access.
Upload your catalog
Add products with structured size charts via the dashboard or bulk CSV import. Define measurements per size, category, and gender.
Integrate the API
Add a single script tag to your storefront. The FITLD widget renders automatically on product pages and calls the recommendation engine.
Watch returns drop
Customers who see a size recommendation before buying are significantly less likely to return. Your data also improves across every interaction.
Services
What FITLD offers
Five integrated services that cover the full fit lifecycle, from measurement capture to point-of-sale recommendation.
Shopper Profiles
Free, private measurement storage with guided entry. Shoppers control access per brand and can update their data anytime. No ads, no tracking, no data selling.
Brand Catalog
Structured size chart management with support for clothing and footwear, multi-gender catalogs, custom measurement fields, and bulk CSV import for rapid onboarding.
Fit API
REST API for programmatic catalog management, size recommendation requests, and integration custom workflows. Rate limits scale with your plan. Documentation included.
Embeddable Widget
A single script tag adds a Find My Fit button to your product pages. The modal walks customers through size selection based on their stored profile. Works with any storefront platform.
Bulk Import
Upload hundreds of products at once via CSV or JSON. Map your existing size columns to FITLD fields, validate before importing, and get real-time error reporting for failed rows.
Plus API analytics
Usage tracking, plan management, and per-product performance metrics available in your brand dashboard.
Reach and impact
FITLD by the numbers
Structured sizing data and machine learning recommendations serving shoppers and brands across categories.
Why FITLD
What sets FITLD apart
Privacy-first architecture
Shoppers own their measurements. Brands receive a size recommendation, not body data. No data is sold, shared, or used for advertising. Each access request is logged and visible to the shopper.
Works with any storefront
No platform lock-in. The FITLD widget is a single script tag that works with Shopify, WooCommerce, custom builds, and headless commerce stacks. If it supports JavaScript, it works.
Built for real catalogs
Support for clothing and footwear, alpha and numeric sizes, multi-gender catalogs, and custom measurement fields. Bulk import handles catalogs of any size without manual data entry.
Get started
Join FITLD today
Whether you are a shopper tired of guessing your size or a brand ready to reduce returns, FITLD has a path for you.
For shoppers
Find your fit
Create a free profile, store your measurements privately, and get size recommendations when you shop at partner brands. No subscriptions, no ads, no data sharing.
For brands
Publish your size data
Upload products and size charts, integrate the FITLD widget, and give your customers the confidence to buy the right size on the first try.
FAQ
Got questions? We have answers.
Everything you need to know about FITLD, from privacy to integration.