Install Ruban Size from the Shopify App Store

Fit scale

A fixed scale of five steps, from runs small to runs large, that shows shoppers how an item fits compared with its size chart.

A fit scale shows, next to the size chart, how an item fits compared with what the chart says. It has fixed steps with fixed words, so shoppers read it at a glance and the same way on every product. A one-line fit note under it says why, and what to do.

On a size chart

Ruban Size uses five steps, with one lit and its word beside it:

StepWhat shoppers readWhat it tells themFind my size moves the measurement
-2Runs smallConsider the next size upup 0.55 of a size step
-1Runs slightly smallBetween two sizes, go upup 0.2 of a size step
0True to sizeTake the size the chart givesnot at all
+1Runs slightly largeBetween two sizes, go downdown 0.2 of a size step
+2Runs largeConsider one size downdown 0.55 of a size step

A good fit note names the cut and gives a direction, like the coats and jackets template's "Cut to layer: for a closer fit, take one size down."

In Ruban Size

In the chart's Fit and Find my size tab, pick a step under Fit scale, or "Not shown" if you don't know yet, and write a Fit note (optional). The five words show in the shopper's language without any translating on your side. Find my size moves its answer as in the last column, and says so: "This item runs small: we took it into account."

Templates that need one arrive set: jeans and activewear one step small, coats and scrubs one step large, tops and dresses true to size. On the Fit plan, returns by size flag a size from 3 size returns with at least 70% pointing the same way, and one click moves the scale one step. More in fit notes that help.

Read more

Try Ruban Size on your store.

Free for 5 size charts. Pro and Fit start with a 14-day free trial, billed by Shopify.