For Brands

Prevent the returns fit guidance could have stopped

Size-related returns can consume an estimated 22% of gross revenue through reverse logistics, restocking, and lost margin. Thinx3D addresses the issue at its source.

The return problem

Size guessing drives an expensive acquisition cost

A size-related return often begins with an unsupported choice. Shoppers rely on numbers that vary by brand and cut, order what seems likely to fit, then send it back when it does not. The brand absorbs the resulting margin loss.

Thinx3D compares the shopper's body geometry with your garment measurements. The resulting recommendation rests on those two inputs, rather than a guess.

See how the model works
Size-related return rate Q4 2025 pilot
No fit tool
68%
Size chart
54%
Thinx3D
29%
Included

Fit tools for apparel brands

From phone photos to garment measurements, Thinx3D connects the steps needed to show shoppers how a size is likely to fit.

A 3D model from two photos

Front and side phone photos, no app needed. Photogrammetry extracts 28 measurements to within 1.8 cm.

Garment spec integration

Provide your graded spec sheets, and Thinx3D maps each size to the shopper's body geometry to identify the best fit with zone-level detail.

Returns analytics

Review returns by SKU, size, and fit zone. Measurement gaps become visible, helping teams address the products that lead to returns before the next season.

Shopify or REST API

Shopify one-click or REST API. The widget appears on the product page. Integration averages under one business week.

Privacy-first data handling

Measurements are processed ephemerally and are not stored without explicit consent. Thinx3D is GDPR and CCPA compliant, with no biometric data retained on your servers.

Fit preference settings

Returning shoppers may choose relaxed, regular, or fitted. That preference adjusts recommendations throughout the session and informs your spec quality score.

Pilot results

Early-access results in numbers

The Q4 2025 pilot cohort was measured for 90 days after deployment. Outcomes differ with brand, product category, and shopper behavior.

41%
Fewer size-related returns
Pre-Thinx3D baseline, 90-day period
2.3x
Repeat purchases after fit recommendation
Compared with shoppers who skipped the widget
8 days
Time to the first live recommendation
Shopify and custom platform deployments
For

For apparel brands tackling returns

Thinx3D is designed for online apparel. It uses phone-based body modeling and garment measurements, rather than a hardware scan or a branded size-chart lookup.

Women's and men's apparel

Tops, bottoms, dresses, and outerwear with graded sizing can use fit data organized around the measurement points relevant to each category.

Shopify and DTC brands

For brands earning $2M to $50M in annual online apparel revenue, a 10-point reduction in returns can materially affect profitability and repeat purchases.

Custom storefronts with REST API

Headless and proprietary storefronts can connect through REST API and place the widget within the product page template.

Talk to us about your brand See pricing

Early access is limited each quarter

Each early-access partner works with us to configure garment specifications, complete an integration, and measure results. This hands-on setup limits how many brands we onboard at once.