Sizing Online Without the Returns Carousel: A Practical Fit Guide
Clothing is returned at three to four times the rate of other categories, almost always for fit. Measuring once and reading reviews properly fixes most of it.
Online clothing returns run at 25-40% at many retailers, and the dominant reason is fit. Returns are not free for anyone: they cost the retailer in shipping and processing, they cost the planet in transport, and increasingly they cost you in return fees or shortened windows. A little method goes a long way.
Measure yourself once, properly
Four measurements cover most garments: chest/bust, natural waist, hips, and inside leg. Use a soft tape, measure over light clothing, and write the numbers down in both centimetres and inches. Re-measure twice a year. Most fit problems start with guessing a size from the last brand you bought.
Use the brand’s size chart – every time
There is no universal “medium”. Compare your measurements to the chart for that garment, not the brand’s generic chart, and read whether the chart lists body measurements or garment measurements – they are different by the amount of ease the designer intended.
Read reviews for fit, not for stars
- Filter for reviewers who state their height and weight or usual size.
- Look for consistent phrases: “runs small”, “long in the arm”, “true to size”. One review is an opinion; five saying the same thing is data.
- Retailers that show a “fit” bar (runs small ↔ runs large) are aggregating exactly this.
Fabric tells you how it will behave
| Composition | Expect |
|---|---|
| 100% cotton, not pre-shrunk | Up to 5% shrinkage in the first wash – size up or wash cold |
| Cotton with 2-5% elastane | Forgiving; stays close to the chart |
| Linen | Relaxes with wear; buy closer-fitting |
| Polyester/nylon technical fabrics | Stable; trust the chart |
| Wool knits | Can stretch over time; do not size up |
When you must order two sizes
Sometimes the chart puts you between sizes and the reviews disagree. Ordering two is legitimate if the retailer offers free returns and you send the second back promptly – but do it rarely. Retailers now track serial returners and some restrict accounts or charge fees. Check the returns policy’s wording on “excessive returns” before relying on this.
Tools that help
Several brands offer video or questionnaire-based fit finders, and footwear specialists like Stride Running fit by video call – we have found these reduce returns meaningfully. Where a brand offers a free fit service, use it before your first order; the second order is then easy.