# Shopify Size Chart Report 2026: what 829 fashion stores tell shoppers about size and fit

Canonical source: https://www.renderedfits.com/size-chart-report-2026/
Published: 2026-09-29. Data collected: 2026-09-24. Reviewed: 2026-10-01.

## Citation and reuse

Rendered Fits (2026). Shopify Size Chart Report 2026: what 829 fashion stores tell shoppers about size and fit. https://www.renderedfits.com/size-chart-report-2026/

CC BY 4.0: https://creativecommons.org/licenses/by/4.0/
Please include the source, date, sample and relevant limitation when reusing a figure.

## Sample and method

1,186 domains considered; 903 readable public product feeds; 829 stores with clothing sizes; 107,138 sized products. Readable-chart subset: 262 stores.

Automated scan on 24 September 2026 of public Shopify product feeds (up to 250 recent products per store), product pages and linked size guides. Raw HTML; no JavaScript execution, login or orders.
Full method: https://www.renderedfits.com/size-chart-report-2026/#method

## Published aggregate results

| Measure | Share | Denominator | Note |
|---|---:|---|---|
| Size chart readable as text on the page | 31.6% | Store | No chart problem found by the scanner |
| No size chart found | 27.7% | Store | No chart on product pages, guide pages or descriptions |
| Size chart is an image | 27.1% | Store | Chart published as a picture |
| Size chart loads only through a sizing app | 7.7% | Store | Chart injected by an app script |
| Size chart loads after the page | 4.8% | Store | Guide or button present, no readable chart in the HTML |
| Same size labelled different ways | 23.3% | Store | e.g. "S", "Small" and "SM" across products |
| Sizes sold but missing from the chart | 9% | Store | A size on sale that the guide does not cover |
| Readable charts in one unit only (cm or inches) | 47.7% | Store with readable chart | n = 262 |
| Fit notes on fewer than 30% of sized products | 78.9% | Store | "true to size", "relaxed fit", "size up" and similar |
| No fit notes on any sized product | 27.6% | Store |  |
| Sized products that say how they fit | 20.3% | Product | Weighted across 107,138 sized products |
| Model's size or height never given | 73.8% | Store |  |
| Sized products that give the model's size or height | 10.3% | Product | Weighted across 107,138 sized products |
| Fit notes on 30%+ and model info on 20%+ of products | 7.2% | Store | Both basics covered |
| A sizing app detected | 10.5% | Store | Kiwi Sizing 67 stores, True Fit 10, others 11 |

## Limits

- Non-random sample from the Rendered Fits market research list; not a Shopify-wide estimate.
- A chart not found in raw HTML may still be available to shoppers after a click or JavaScript.
- Pattern matching can miss unusual fit-note or model-information wording.
- One-day descriptive snapshot; no measured effect on sales, physical fit or returns.
- Percentages use the stated store or product denominator; do not combine overlapping measures. Values are rounded; do not derive exact counts from them.

## Downloads

- https://www.renderedfits.com/size-chart-report-2026/size-chart-report-2026.csv
- https://www.renderedfits.com/size-chart-report-2026/size-chart-accessibility.svg
- https://www.renderedfits.com/size-chart-report-2026/size-chart-accessibility.png
- https://www.renderedfits.com/size-chart-report-2026/product-fit-information.svg
- https://www.renderedfits.com/size-chart-report-2026/product-fit-information.png