Returns & CX Mar 29, 2027 5 min read
How to Turn Fit Reviews into Size Chart Improvements
Fit feedback is gold for size chart improvement. Patterns: runs-small flag → update chart or add note. Inconsistent → may indicate fabric or QC issue, not chart.
The Chart
| Pattern in Reviews | Action |
|---|---|
| ≥30% say runs small | Update chart sizing OR add 'sizes small' note |
| ≥30% say runs large | Same — update or note |
| Mixed (no clear majority) | Likely fabric variability; check production batch |
| Specific size only off | Update grading for that size |
| After fabric change | Re-evaluate — fabric drape changed fit |
FAQs
How many reviews before acting?
10-15 reviews minimum on a single product. Smaller sample = noisy data. For brands with many products, focus on top sellers first — biggest impact.
Update chart or just add note?
Note ('runs small — size up') is fastest, lowest-risk. Updating chart numbers requires production changes. Note bridges until you can update production.
Need this on your store?
Tailor Size Guide ships pre-built size charts for Shopify.