FitMatch Sizing Bar eliminates the guesswork from buying apparel online. Shoppers simply enter their usual size (e.g., “M” or “32”), and the widget automatically selects the matching size. Merchants can mark products as “runs small” or “runs big” – the widget adjusts the recommendation up or down. Optionally, you can require customers to use FitMatch before adding to cart, ensuring every buyer has been guided. The widget detects apparel, pants, and shoes, and requires zero coding.

• Size matching – Customers enter their usual size, widget picks the correct size.
• Merchant fit adjustments – Mark products as runs small/big; widget adjusts size.
• Lock add‑to‑cart – Force sizing interaction to reduce “guessed” returns.
• Global defaults + overrides – Set store‑wide rules and fine‑tune per product.
• Theme support – Works with selects, swatches, radio buttons – any theme.