One of the biggest challenges when buying from Asian sellers is getting the right size. Chinese clothing generally runs one to two sizes smaller than Western brands, and sneaker sizing can vary by batch. A medium hoodie from a Chinese seller often fits like a small from Nike or Adidas. This comprehensive guide provides measurement techniques, size conversion tables, category-specific recommendations, and troubleshooting advice for when your order arrives and the fit is not quite right.
Understanding the Asian Sizing Difference
Asian sizing standards are based on average body measurements in China, Japan, and Korea, which are generally smaller than European and American averages. A Chinese XL is roughly equivalent to a US medium or large. Additionally, Asian brands often use slimmer cuts with shorter sleeves and torsos compared to Western boxy or oversized fits. Understanding these structural differences is as important as understanding the numerical size conversion.
1 size
T-Shirt Size Up
1-2 sizes
Hoodie Size Up
Check chart
Pants Size Up
True to EU
Sneakers
How to Measure Your Body Correctly
Chest / Bust
Wrap the measuring tape around the fullest part of your chest, keeping the tape level and snug but not tight. Record this in centimeters for maximum accuracy.
Shoulder Width
Measure from the outer edge of one shoulder bone to the other. This determines how a garment will sit across your upper back.
Sleeve Length
Measure from the shoulder seam to your wrist bone with your arm slightly bent. Oversized fits may add 5-10cm to this measurement.
Waist and Hips
For pants, measure your natural waistline and the fullest part of your hips. Chinese pants often have slim thighs, so measure thigh circumference too.
Inseam and Foot Length
For pants, measure from crotch to ankle. For shoes, trace your foot on paper and measure the longest point in centimeters.
Clothing Size Conversion Tables
| Your Western Size | Chinese T-Shirt | Chinese Hoodie | Chinese Pants |
|---|---|---|---|
| US XS / EU 44 | M | L | M |
| US S / EU 46 | L | XL | L |
| US M / EU 48 | XL | XXL | L-XL |
| US L / EU 50 | XXL | XXXL | XL |
| US XL / EU 52 | XXXL | XXXXL | XXL |
| US XXL / EU 54 | XXXXL | XXXXXL | XXXL |
Sneaker Sizing: EU is Your Anchor
Replica sneakers generally run true to European sizing but may vary slightly by batch and factory. The safest approach is to know your EU size and use that as the anchor for all purchases. For example, if you wear a US 9, that is typically EU 42.5. When ordering, specify the EU size and always check the seller's size chart for that specific batch. Some factories run slightly large or small, and community notes in the OopBuy Spreadsheet will flag these variations for popular models.
Sneaker Sizing Tip
Measure your foot in centimeters and compare it to the seller's CM size chart. This is more accurate than converting between US, UK, and EU sizes, which vary by brand even at retail.
What to Do If Your Order Does Not Fit
If an item arrives and does not fit, most agents allow returns within 7 days of the item arriving at their warehouse. The catch is that you must pay the domestic return shipping cost back to the seller, which is typically $2 to $5. For items already in your possession, you can resell on local marketplaces or alter them. Tailoring oversized items is often cheaper and faster than returning them to China. For sneakers that are slightly tight, removing the insole can add half a size of room instantly.
Summary
Accurate sizing is the key to satisfaction when buying from Asian sellers. Measure your body in centimeters, reference the conversion tables, and always check batch-specific notes before ordering. When in doubt, size up for tops and use EU sizing as your anchor for sneakers. The OopBuy Spreadsheet product pages include size-specific community feedback to help you make informed decisions.

