What does a size label actually mean on a Chinese listing?

Size labels on a Chinese listing, read as a range

A size label travels a long way before it reaches you: translated by the seller, sometimes copied off a factory sheet, sometimes chosen to match whichever market the listing sells into most. Two listings for the same shoe can carry different labels on the same last.

Nothing about that is dishonest. It means the label is shorthand for a block of sizes, and the block is defined by whoever made the mould. The figure that matters is the one taken off the physical item, which is why the desk records insole length and widest point rather than trusting the tag.

Read a label as a range with soft edges. If your foot measures 268 mm, an EU 42 that runs small can be unwearable while an EU 42 that runs large is comfortable, and both carry the same tag.

1. Treat the label as shorthand for a size block, not as a body measurement.
2. Expect two listings with the same label to differ by a few millimetres.
3. Decide with the measured figure for that model, not with the label on the box.

Labelled size against measured insole length

Footwear rows in the measured tally carry three numbers: the labelled size, the insole length in millimetres, and the widest point in millimetres. The first is what the listing says; the other two are what three pairs of that model actually measured on the same board with the same tape.

Reading down those rows, one labelled step generally moves the insole by 8 to 11 mm. That range matters because a foot sitting at the top of one band can be inside the next size up, and the model delta tells you whether the factory cuts generously or short.

The verdict column summarises the comparison: rows marked true sit where the label suggests, rows marked small or large sit at the edges. A row marked small says nothing about quality; it says the same foot needs the next size up in that model.

Chest width and body length as the two garment axes

Upper-body garments get measured flat: chest width from armpit to armpit, and body length from the high point of the shoulder to the hem. Those two figures answer most fit questions, and a label does not.

The garment run added 38 rows, three units per model, and four models were flagged because the labelled size sat two steps away from what the flat measurement suggested. In practice a size M tag on one model can match the chest width of a size L tag on another.

When you ask for a measurement, name both axes. A reply with one number cannot be compared against the table, and you end up guessing on the axis that decides the fit — shoulder drop on a jacket, hem length on a hoodie.

1. Chest width is measured flat, armpit to armpit; check whether the table doubles it.
2. Body length runs from the shoulder point to the hem, not from the collar.
3. A reply with one axis is half an answer; ask again for the second.

Footwear rows that ran away from their label

Four rows were retired from the footwear set because three pairs of the same model disagreed by more than 6 mm. With that much spread the model cannot be judged from three pairs, and publishing a mean would imply a precision the measurement does not have.

The rows that survived still carry a delta: the gap between this labelled size and the one below it in the same model. A delta of 11 mm means the factory cuts a wide step; a delta of 8 mm means the sizes sit close together and a wrong choice is harder to notice.

Read the delta before the verdict. It decides whether sizing up is a small correction or a jump past your foot length.

1. Rows spreading more than 6 mm across three pairs were retired, not averaged.
2. A wide delta means sizing up overshoots; a narrow one means the label choice matters more.
3. Repeat runs on the same model are the only way to see that spread at all.

What a size label cannot promise about fit

A label says nothing about width, arch height, toe box depth or how an upper breaks in. Two models at the same insole length can feel completely different across the ball of the foot, which is why the widest point is recorded at all.

For garments, a flat measurement says nothing about stretch, drape, or how a shoulder sits once the fabric hangs. A ribbed knit at 60 cm chest behaves nothing like a nylon shell at the same figure.

This is where the desk draws its line. Measurements are published because anyone can repeat them with a tape. Fit impressions appear only as a three-word verdict, and only when three units agreed.

1. Width and drape are not captured by a label or by one flat figure.
2. A verdict word summarises three measurements; it is not a promise about feel.
3. If a listing gives no measurements, the label is the only evidence, and it is weak evidence.

Numbers to write down before you pick a size

Measure the foot or the body once, write the figure down, and keep it beside the listing while you choose. Two minutes of work removes the loop of guessing, ordering, waiting and exchanging.

Then match that figure against the model row rather than against the label. If the row is missing, the honest move is to ask the warehouse for both axes and to accept an answer that arrives as a range.

Keep the note. When a parcel lands and the fit is wrong, the difference between “the label misled me” and “the measurement was 6 mm short of the row” decides whether you have an argument or a preference.

1. Write your foot length and width down once, in millimetres.
2. Compare that figure with the model row, not with the listing label.
3. Keep the numbers with the order so a later exchange has a basis.

Where the numbers in this entry come from

Own measurement run one, KB-2026-03: 46 footwear rows, three pairs per model, insole length and widest point taken on one board with one tape; four rows were retired where the three runs disagreed by more than 6 mm.

◇KB-2026-03· 2026-09-30 See the batch ledger · Challenge a figure

Entries filed next to this one

• How do you measure a parcel so the numbers hold up?

  Measure the way a warehouse does: weigh the whole sealed parcel, measure the outer carton at its widest points, and record mass and volume together, because the chargeable figure is the greater of the two after rounding.

• What do QC photos actually show, and what do they miss?

  A standard set proves identity: the item, its branding, its label, and its overall shape from a few angles. It is good at showing a fault inside the frame and bad at coverage, fit, smell, or anything requiring the item to be handled. Ask for a named area and a named fault instead of a general check.

• What is a CNFans spreadsheet, exactly?

  It is a table of links, not a shop and not a file you download. Each row points at one listing on a domestic marketplace, with the few details that row needed to be useful. The buying itself happens on the agent platform, which is a separate object from the table you are reading.

Gauges this entry points at

• Applicability protocol

  Work out which entries apply to your order right now.