A good sample proves a factory can make one bag well. Quality control is what proves they can make five hundred the same way. The two are not the same skill, and the gap between them is where most importers lose money.
This is the checklist we actually run before a shipment leaves our factory, published in full so you can use it to audit any supplier — including us.
Why the sample is not the guarantee
Samples are made slowly, by the most experienced people, with attention that cannot be sustained across a production run. Bulk production involves more operators, more handling, and more opportunity for a specification to drift.
The only real protection is inspection at defined points, against a written specification, with a measurable pass standard. If a supplier cannot describe their inspection stages, they do not have quality control — they have hope.
1. Material inspection on arrival
- Thickness measured against specification at several points across the hide or roll
- Colour checked against the approved sample under consistent lighting
- Surface inspected for scars, uneven grain, marks and inconsistent finish
- Linings checked for weight, weave and colour match
Material that fails here is rejected before it is cut. Rejecting a finished bag for a material fault is far more expensive than rejecting the material.
2. Cutting accuracy
Pattern pieces are checked against the pattern and against each other. A two-millimetre error in cutting becomes a visible mismatch at assembly, particularly on symmetric panels.
3. Stitching density
This is the most commonly faked specification in the industry. Stitch density is set to your specification and measured before shipment, rather than assumed.
- Counted on seams that carry weight: handles, strap anchors, base
- Thread tension checked so the stitch sits consistently without puckering
- Thread colour matched to the material or to the approved sample
4. Seam strength and construction
Handle and strap attachment points are stressed by hand. Bar tacks and reinforcement patches are checked for placement. Edges are checked for finish quality — raw edges on a load-bearing seam are a defect, not a style choice.
5. Hardware
- Zippers cycled across their full travel, checking for snagging and smooth return
- Pullers and sliders checked for plating consistency and for sharp edges
- Buckles and rings loaded, not just looked at
- Rivets and studs checked for seating and for the finish matching the approved sample
Plating quality is where cheap hardware reveals itself. Ask what happens to the metal after a few months of contact with hands and rain.
6. Lining and interior
- Lining aligned without wrinkles or excess slack
- Interior pockets positioned and sized to specification
- No loose thread ends, raw edges, or visible glue
The interior is where a factory that is rushing gets caught. Turn every bag inside out.
7. Dimensions
Length, height and depth measured on finished pieces against the approved specification. A tolerance of a few millimetres is normal; a centimetre is not, especially on a bag that needs to fit a laptop or a cabin allowance.
8. Logo and branding
- Position checked against the approved placement
- Embossing depth and definition consistent
- Foil stamping adhesion — it should not lift at the edge
- Metal plates seated flat, no gaps
9. Odour
Bags that smell strongly of glue or chemicals usually have a lining that was assembled before the adhesive cured. It will fade, but a customer opening the box does not know that. This check is done after packing, not before.
10. Function testing
Every piece that carries a specific claim is tested for it: a laptop bag against a laptop of the stated size, a trolley sleeve against a handle, a waterproof style against a spray test at the seams rather than only on the panel.
11. Packing
- Dust bag, poly bag or branded packaging per specification
- Shape supported so the bag arrives without creasing or denting
- Carton quantity verified by count, not by estimate
- Carton label matches the packing list format your forwarder needs
12. Final inspection record
An inspection report with photographs, piece counts and any deviations, prepared before the shipment is sealed. If a problem is found after arrival, this is the document that settles the conversation.
Our numbers
Every step from raw material intake to finished goods is checked, and our defect rate is held under 2%. Every bag we manufacture carries a 3-year warranty against defects in workmanship and materials.
What to ask your supplier for
The same three questions work on any factory:
- What are your inspection stages, and who signs off at each one?
- What is your measured defect rate?
- Can I have the inspection report and photographs before the container is sealed?
Frequently asked questions
Can I arrange third-party inspection? Yes, and for a first order it is often worth it. We will work with your nominated inspection company and make the goods available at the agreed stage.
What stitch density should I ask for? Ask what density they work to on load-bearing seams, and whether they measure it. A supplier who can answer with a number and a method has a process; one who cannot is guessing. Tell us the density you need and we will set it on your order.
What is a normal defect rate? Under 2% on finished goods is a reasonable benchmark. Ask how it is measured — a rate with no methodology behind it means nothing.
What happens if defects are found? They are reworked or replaced before shipping, and the decision is recorded in the inspection report.
Put the checklist to work on a real order
Send us a style and a quantity, and ask us the three questions above. We would rather be audited than trusted on faith.
Start from leather handbags, laptop backpacks or tote bags, or request a quote.
Two related steps: our guide to bag labeling and packaging requirements for US and EU retailers, and what we check before the carton is sealed in the checklist above.
For where inspection sits in the wider process, start with the complete buyer’s guide.
The checks above apply to every style we make, including low-cost lines such as waist packs, crossbody fanny packs, anti-theft backpacks, travel laptop backpacks and laptop backpacks.
QC is the last step before shipping — the earlier ones are sampling and lead time planning.
