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DocumentationBlocksSizing fit

Sizing Fit Block

The Sizing fit block shows a five-segment fit indicator for the current product. It reads the custom.sizing_fit_score product metafield.

Setup Order

  1. Create the metafieldIn Shopify Admin, create a product metafield with namespace and key `custom.sizing_fit_score` and store an integer value from 1 to 5.
  2. Assign product valuesUse 1 for runs small, 3 for true to size, and 5 for runs large. Use 2 and 4 for intermediate fit behavior.
  3. Add the blockPlace Sizing fit near the Product title, Size guide, or variant picker where customers make fit decisions.
  4. Review missing dataChoose whether the block hides when the metafield is missing or falls back to the default centered score.

Score Map

ScoreMeaning
1Runs small
2Slightly small
3True to size
4Slightly large
5Runs large

Key Settings

Setting groupWhat to use it for
ContentTitle, small/normal/large labels, link text, and optional size-guide link.
Missing dataHide the block when no score exists or show a default centered fit indicator.
TypographyTitle, label, and link sizing.
IndicatorBar height, segment radius, marker size, and optional custom indicator colors.
SurfaceBackground, border, radius, text, and padding controls.

Pair With Size Guide

Sizing fit answers “How does this garment fit?” while Size guide answers “Which measurements should I choose?” Use both when fit behavior and measurements matter.

If you use product-specific size charts, link this block to the Size guide block or keep it visually close to the size guide trigger.

QA Checklist

StateWhat to confirm
Score 1Indicator and labels communicate a smaller fit.
Score 3Indicator centers on true-to-size.
Score 5Indicator communicates a larger fit.
Missing scoreBlock hides or falls back according to your setting.
MobileLabels and optional size-guide link do not crowd the product form.