QC field notes, revised 10 November 2026 — 14 checks, in the order an inspector uses them. See photographed stock →

QC field manual

A yupoo QC photo set is evidence. Read it like one.

Every listing promises good quality. The QC set is the only part of the transaction where that promise becomes checkable: a glue line, a stitch count, four millimetres of difference between two soles. This is the order an inspector reads them in.

  • Revised 10 Nov 2026
  • 16 min read
  • Built from 40 album sets

The eight angles that make a set usable

A QC set is not a photo shoot. It is a checklist somebody else performed on your behalf, and like any checklist it is only as good as its coverage. Trade inspection photography follows a fixed sequence because a defect invisible from one angle is obvious from the next.

Count the eight. Both lateral profiles. Both three-quarter views from the toe. The heel counter, shot from behind and straight on. The outsole, flat. The tongue label, legible. The insole lifted out of the shoe. The toe box from directly overhead. And one frame of the pair together, unworn, so you can see whether left and right came from the same leather.

Twelve photos of the same three-quarter angle are not a set. They are twelve chances to admire a toe box and no chance at all to check a heel. If two frames are missing, ask for them by name. If four are missing, you are not looking at QC — you are looking at the seller's product page with a different filename.

Warm light is a filter, not a mood

Most resellers shoot under 2700–3500 K bulbs, and aesthetics are not the reason. Warm light evens out tone, softens oxidation on a white midsole and turns a glue bleed into something that reads as shadow. Under 5500 K daylight the same pair is a different object: the glue line goes amber, edge paint looks chalky, a yellowed sole is impossible to miss.

You cannot pick the lamp, but you can request one extra frame: the item beside a sheet of white A4 in the same light. Paper is a known quantity. If the sheet photographs cream, everything around it is warmer than life and you should subtract accordingly. If it photographs blue-grey, the shot came off a cheap LED panel and the colour is not worth reading.

Shadow is the second tell. Light raking in at roughly fifteen degrees throws shade into the stitch deck and shows whether the rows run straight. Flat frontal light that leaves no shadow anywhere is a very efficient way to photograph a wobbly seam so that it disappears.

Prada Cloudbust black leather low-top sneakers, photographed side on for a yupoo QC inspection
Ask for this angle first. The stitch row above the Prada Cloudbust midsole is the cheapest detail to check and the first one a rushed line gets wrong.

Put something with a known size in the frame

Sizes are the most confidently stated and least verifiable number in any catalogue. The fix is a reference object: a bank card is 85.6 by 54 mm anywhere on earth, an A4 sheet is 297 by 210. Ask for one of them flat in the frame and sole length stops being a matter of trust.

A pair listed at EU 42 should measure about 28.5 cm heel to toe, give or take three millimetres between factories. Drift past that and you are looking at a different size, or a different last — a wider mould that will fit like nothing already in your wardrobe. Logos are easier still: measure the gap between two stripes against the card, then compare with a retail photo taken from the same angle.

Weight is the third reference, and the one sellers volunteer least. Leather sneakers in a 42 land around 480–520 g. The same silhouette in synthetic often comes in under 400 g. When an album publishes grams, read it before you read the copy.

Glue, stitch and edge paint at 100 percent

Zoom until the image goes soft, then step back one notch. That is where defects live, and only three of them are worth your time — ordered here by how expensive they are to live with.

Glue. Look where the upper meets the midsole, at the toe and around the heel. Clean construction leaves a thin, even film that stops short of the leather. A rushed line leaves stringy excess, a yellow halo where solvent was wiped, or a bubble that opens within a month of wear.

Stitch density. Proper uppers run seven to nine stitches per inch with even tension and parallel rows. A row that drifts toward the sole, a skipped stitch at the toe cap, or a doubled-back run where the machinist restarted is a construction problem, not a cosmetic one.

Edge paint is the sealed rim on a cut leather edge. It should be smooth, faintly glossy and the same thickness the whole way round. Ragged paint is a shrug on a cheap pair and a legitimate refusal on an expensive one.

A seller who sends eight correct angles without being asked is telling you something the photos cannot: that returns are expensive for them and they would rather not have one. Why the process matters more than any single frame

The shots sellers leave out

The insole is the most honest part of a shoe. Lift it and photograph the print flat: a clean, centred stamp with a readable size usually means the same factory got the pattern right too. A blurred, off-centre print on an insole that does not match the shoe is assembly from whatever was within reach.

Box labels carry the style code, the size and a production date, which is how you check an item against a retail reference. Ask for the label flat rather than angled. A label photographed edge-on is usually a label with the wrong code on it.

The last frame almost nobody requests: both shoes side by side, laces out, nothing styled. It is the only shot that shows whether the pair came from one dye lot. Two different shades across a pair is not a lighting problem.

How to write a rejection that gets actioned

Rejections fail for a boring reason: they describe a feeling instead of a fact. “Quality is bad” gives a seller nothing to act on and is easy to answer with “friend, this is normal”. A rejection that works has three parts — what you see, where it is, what you want.

Write it once, in one message. Crop the photo, circle the defect, put the sentence underneath: “Left shoe, heel counter, glue visible along the seam for about 15 mm. This is outside the standard shown in your album. Please exchange for a pair from the same batch, or refund this line.” Then stop typing. Every extra paragraph dilutes the ask.

Name a deadline and a consequence without theatre: “If a replacement is not available within 48 hours I will refund this line and ship the rest of the order.” Agents price a clear cost far better than they price anger. Keep the log — the buyer with a timestamped record wins these arguments.

Let the small things go. A two-millimetre toe height difference, a seam sitting slightly proud, a lace one shade off: all inside tolerance at this price point. Spend rejections on the defects you would notice every time you put the item on.

The fourteen-point inspection checklist

Work down this list once per item, in order. It takes longer to read than to perform, and it catches the failures that otherwise arrive three weeks later in a parcel.

  1. Both lateral profiles, in focus, at full zoom.
  2. Heel counter from behind — straight, or leaning in?
  3. Outsole flat, tread depth even across the forefoot.
  4. Tongue label: letter geometry, spelling, stitch border.
  5. Insole lifted, print centred and legible.
  6. Toe box from above — symmetric, no pre-crease.
  7. Glue line at the toe and around the heel.
  8. Stitch density and drift along the upper.
  9. Edge paint continuity around the entire sole rim.
  10. A reference object in frame — card or A4 sheet.
  11. White paper in the same light for colour truth.
  12. Pair together, unworn, for shade matching.
  13. Box label: style code, size, factory stamp.
  14. Weight in grams, if the album publishes it.

Where a defect sits, and whether it is worth refusing

Eight calls we make repeatedly. The right-hand column is not generosity — it is a rough calculation of what a replacement costs you in days, not money.

Defect calls for sneakers, outerwear and leather goods
DefectWhere to lookAccept or reject
Glue halo at the toeJunction of upper and midsole under raking lightReject on smooth leather, accept on suede
Skipped stitchToe cap and heel seam, at 100% zoomReject — it will open with wear
Ragged edge paintEntire sole rim, followed clockwiseAccept under 5 mm, reject if flaking
Shade mismatch across the pairPair-together frame beside white paperReject — two dye lots, not two lights
Yellowed midsoleOutsole shoulder, daylight frames onlyAccept at a discount, reject at full price
Off-centre insole printInsole lifted and photographed flatAccept — cosmetic, invisible when worn
Box label mismatchLabel flat, style code against the albumReject — wrong-SKU risk before shipping
Printed logo instead of embossedHeel or tongue, lit from the sideReject on premium tiers, accept on budget

Cross-check the batch before you approve

Reading a set well still depends on having something to compare it with. The three listings below show how detail photography should look on stock that is actually held, not borrowed from a factory folder. Use them as the reference frame for yupoo batch quality when an album gets vague.

Bags follow the same logic as shoes with one addition: ask for the interior, the zipper pull and the hardware at an angle that catches a highlight. Plated metal is the fastest tell on a bag, and it never photographs well in flat light.

Six questions that arrive after the first rejection

How many QC photos should I actually ask for?

Eight minimum, twelve is generous. Fewer than eight and an angle is missing; more than sixteen usually means the same view twice with different crops. Ask for missing views by name — “heel from behind, outsole flat” — rather than for “more photos”, which is a request a seller can satisfy without showing you anything new.

Can I accept video instead of stills?

Both, not either. A twenty-second clip is good for shape, light and how the leather moves; it is useless for a stitch count because every frame is compressed twice. Watch the video to decide whether the pair looks alive, then inspect the stills to decide whether it is constructed properly.

Do QC photos cost extra?

With most agents they are bundled into the service fee. A few sellers charge a small amount per item for additional angles, which is usually worth paying above a certain price. A seller who refuses to photograph at all is not charging for QC — they are declining to be inspected, and that is the actual signal.

What if the seller refuses the extra angles?

Ask once more, politely, naming the exact frame. If the answer is still no, weigh it against the price: on a cheap item, accept the risk and move on; on anything expensive, treat the refusal itself as the QC result and walk away. There is always another album with the same factory behind it.

Is a damaged box a reason to reject?

Only when the box is part of the product or the gift. A crushed corner that happened in transit is a shipping claim, not a QC claim, and the seller will say so. A mismatched label is different: that is a wrong-SKU risk and worth refusing before the parcel is packed, not after.

The pair arrived different from the QC. What now?

Screenshot the original set, photograph what arrived on a plain surface in daylight, and send the two side by side. “The pair you approved” against “the pair I received” is the only argument that resolves consistently, because it needs no adjectives and no translation. Do it within the return window, before you wear them.

Related reading: how the parcel actually moves once QC passes, and the twenty-question FAQ for everything before the first order.

Read the real thing

Notes are useful. A photographed pair is better.

The WWTop catalogue shoots stock from the shelf rather than the factory folder, so the frame you inspect is the frame you receive. Start with shoes — the category where a bad batch is hardest to hide.

Store links carry ref=yupoo.lifestyle so the shop knows which guide sent you.