Size mistakes are the number one reason for returns and disappointment in the CSSBuy community. Asian sizing runs differently from Western sizing, and the size charts provided by sellers are often confusing or incomplete. This guide teaches you how to measure yourself, compare size charts, and pick the right fit every time.
Why Sizing Is Different
Most items on CSSBuy are produced for Asian markets, where average body dimensions differ from American and European averages. A size Large in China is often closer to a Medium or even Small in the USA. This is true for clothing, shoes, and accessories. Never assume your usual size will work. Always check the chart.
How to Measure Yourself
Before you look at any size chart, measure your own body. You need a flexible measuring tape and a mirror or helper. Record these measurements in both centimeters and inches.
Chest / Bust
Measure around the fullest part of your chest, keeping the tape level under your arms. Do not hold your breath.
Shoulder Width
Measure from the edge of one shoulder bone to the other, across your upper back. This is critical for fitted items.
Length
For tops, measure from the highest point of the shoulder to the bottom hem. For pants, measure the inseam from crotch to ankle.
Foot Length
Stand on a piece of paper, trace your foot, and measure from heel to longest toe. Do this for both feet — use the longer measurement.
Reading the Size Chart
Most CSSBuy listings show a size chart with measurements in centimeters. Compare your body measurements to the chart. Do not compare to your usual size label. If your chest is 104cm and the Large chest measurement is 108cm, that Large is your size. If you want an oversized fit, add 4-8cm to your measurement and choose accordingly.
Common Sizing Mistakes
The most common mistake is ordering your usual size without checking the chart. The second most common mistake is measuring incorrectly — holding the tape too tight, measuring over clothing, or not measuring both feet. The third mistake is ignoring the fit type. A "slim fit" size Large will fit differently from a "relaxed fit" size Large. Always read the fit description.
Shoe Sizing Specifics
Shoe sizing is the most error-prone category. CSSBuy shoe sizes are usually in Chinese sizing (CN), European sizing (EU), or centimeters. Use the foot length measurement, not your usual US size. A US 9 is often a CN 42 or EU 42.5, but this varies by brand. Some sellers run small by half a size. If your foot is 26.5cm, look for a listing that matches 26.5cm in the size chart, not just "US 9."
When to Size Up
Size up if you are between measurements, if you plan to layer underneath, if the item is listed as slim fit, or if reviews consistently say the item runs small. For hoodies and jackets, size up if you want to wear a hoodie underneath. For shoes, half-size up if you have wide feet or plan to wear thick socks.
Pro Tip
When in doubt, ask your CSSBuy agent to measure the actual item before they ship it. This is especially useful for shoes and tailored items. The small fee is worth avoiding a size mistake.
Final Checklist
- Measure your body accurately before browsing
- Compare your measurements to the chart, not your usual size label
- Check the fit type: slim, regular, relaxed, or oversized
- Read recent reviews for sizing comments
- Size up if you are between sizes or plan to layer
- For shoes, use foot length in centimeters, not US size assumptions
Get the sizing right, and your CSSBuy experience becomes significantly smoother. Get it wrong, and even the best item will sit unworn in your closet.