QC Guide · updated Nov 5, 2026
CNFans Sizing: Measure Once, Order Better
Size labels are not measurements. A “L” can be a 108cm chest in one listing and a 116cm chest in another. The only reliable approach is to compare garment measurements with something you already wear.
Start with a live listing
Four picks related to this guide
Live prices from kakox.com, checked 2026-11-05.
This guide gives the four measurements to take, the tolerances to expect, and the category-specific checks that prevent most returns.
Measure a garment, not your body
Lay a piece you like flat. Measure the chest from armpit to armpit, the length from the shoulder seam to the hem, the shoulder from seam to seam, and the sleeve from the shoulder to the cuff.
Double the chest measurement for the circumference. Compare that with the listing; do not rely on the model’s height and weight.
Category tolerances
| Category | Acceptable difference | Where it shows |
|---|---|---|
| Tees | ±2cm chest | Shoulder and sleeve |
| Hoodies | ±2–3cm chest | Body length and cuff |
| Pants | ±1.5cm waist | Rise and inseam |
| Shoes | ±0.5cm insole | Toe box and width |
| Jackets | ±2cm chest | Layering room |
Between two sizes?
For a fitted tee, size down if the chest is within 2cm of your favourite shirt. For a hoodie, size up if you plan to layer. For pants, trust the waist and inseam over the letter.
For shoes, measure your foot in cm and add 0.5cm for toe room. If the listing gives an insole length, compare that number, not the US size.
Shrinkage and stretch
Cotton can shrink 2–4% on the first warm wash; wool can relax with wear; synthetic activewear stretches. If you are between sizes in cotton, choose the larger one and wash cold.
Denim is the exception: rigid denim relaxes at the waist after a few wears, so a snug waist is often right.
When to ask the seller
Ask for a photo of the tape measure against the garment if the chart is missing or looks copied. A seller who cannot provide it is a seller to skip for that item.
FAQ
Questions about this guide
Should I size up for Chinese sizing?
Not automatically. Compare the garment measurements. Some sellers already convert to US/EU sizes; others use Asian sizes that run 1–2 sizes smaller.
How do I measure shoe width?
Trace your foot on paper and measure the widest part in cm. Compare with the insole width if the listing provides it; otherwise choose a seller with a generous return policy.
Can I trust the model photo for fit?
Use it for style, not fit. Models are often taller and wear a size that is pinned at the back.
Put the guide to work on kakox
Browse the same categories on kakox.com, compare prices and complete the purchase with a supported agent.