Looking for a Sizebay alternative
for your fashion e-commerce?

How to evaluate an AI sizing solution

Sizing platforms make similar promises and differ in the operational details. These are the criteria we recommend checking with any vendor — including us:

• Dataset composition — which populations the model is trained on, and how representative that is of your selling market.
• Data location — where your customers' data physically resides and what contractual guarantees (DPA, sub-processors) the vendor provides.
• Functional scope — size recommendation only, or also virtual try-on and product configuration.
• Integration model — what is required from your technical team, and how long until you go live.
• Supported categories — how the model performs on technical garments, plus and petite sizes, and made-to-measure products.
• Measuring results — how impact on returns and conversion is calculated, and whether a trial period is available.

The vendor landscape

Alongside Sizebay, the fashion sizing market includes True Fit and Fit Analytics (part of Snap), both with a strong North American presence, and Virtusize, of Japanese origin.

Each vendor's features, geographic coverage and commercial terms change over time, so we recommend verifying them at the source. Below is a transparent account of what WeWear offers, so you can compare it with the answers you get from others.

The WeWear modules

Frequently asked questions