Sizing that doesn't lie: TTS, CN sizes, and the half-size you'll regret
Chinese sizing runs small and varies by seller. The sheet's notes only help if you know how to read them. Measure once, cry never.
Updated 2026-10-17
TTS, and why 'true to size' is a range
TTS means 'true to size' — the item fits the label. But even retail TTS varies: a 42 in one brand can fit like a 41.5 in another. Treat TTS as 'close to your usual,' never as 'identical to your usual.'
On agent finds, the seller's own buyers often note 'runs half a size small' in the row. That note is gold. Ignore it and you've just ordered your first return.
Reading a CN size tag without panicking
CN sizes are usually in centimeters of foot length for shoes, or a label number for apparel that doesn't map cleanly to US/UK. Don't convert in your head — convert with the seller's chart, because the chart is what the factory used.
When the row gives a CN number and a foot-length, trust the foot-length. It's the one measurement that doesn't lie about which size you actually are.
Measure your body, not the tag you hope fits
Grab a soft tape. Bare foot on the floor, heel to longest toe, both feet — they're not identical. Chest and waist relaxed, not sucked in. Write the numbers down; the tag you 'usually wear' is a memory, the tape is fact.
Then match the fact to the seller's chart, not to the size you'd grab in a Western store. That single habit fixes most 'why is this tight' moments.
Shoes vs apparel: different rules
Shoes you size to foot length and then nudge for batch — some batches run narrow, some long. Apparel you size to body measurement and then nudge for cut — oversized tees are cut to drape, not to hug.
Mixing the two up is how people end up with shoes a size big and tees a size small. Keep a separate note for each in your head, or just write it in the sheet.
Exchanges are a myth here — size right the first time
You're shipping across a border through an agent. There is no 'send it back and swap a size.' Wrong size means a second order, or a item that sits in the closet. The cost of guessing wrong is real money, not a polite shrug.
That's why the notes column exists. Someone already wore the size you're thinking about. Read it like it's the only review that matters — because for fit, it basically is.
The notes column is your size oracle
When a row says 'I'm usually M, took L, perfect,' that's more useful than any chart. It's a real body, a real item, a real outcome. Stack two or three of those and the right size stops being a gamble.
If the row has no size note, that's the signal to slow down — not to guess faster. Go read the batch reviews for fit before you commit the order.
FAQ
Do I size up on Chinese finds?
Often yes, but not blindly. Read the row's note and the seller's chart; many batches run a touch small, some are true. Size to the note, not the habit.
CN size to US — what's the real conversion?
Use the seller's own chart, not a generic Google one. Factories cut to their chart, so a '42' here might be a 9.5 there. Foot length in cm is the only number that travels.
What if the row has no size info?
Slow down and read the batch reviews for fit before ordering. Guessing on an agent find means a second order if you're wrong — there's no swap.
Are my two feet really different sizes?
For most people, yes, by a few millimeters. Size to the larger foot and the smaller one just gets a touch of room. Sizing to the smaller one is how you get pinched toes.




