Ask three factories to quote the same backpack at 300 pieces and again at 3,000 pieces, and you will get three different curves. The gap is not markup. It is how each factory spreads the costs it pays once — and how much of that cost is still sitting on the small-quantity quote.
This guide breaks a price tier into the four costs that actually fall as volume rises, works through one backpack at three volumes, and then covers the calculation most buyers skip: the point where a lower unit price stops being worth the stock you have to carry.
We are a backpack factory in Baigou, Hebei — 30+ people, building bags since 2019. Every product on this site is quoted in tiers, so the structure below is the same one we quote from.
What a Price Tier Actually Is
A price tier is not a discount. It is the same cost structure divided by a different number of units.
Two kinds of cost behave differently, and the whole curve follows from them.
Variable cost — fabric, lining, hardware, thread, labour, packaging. These scale with the order. Three thousand bags use ten times the fabric of three hundred. This part of your unit price barely moves, no matter how big the order.
Fixed cost — pattern and sample development, cutting dies, machine setup, logo screens or heat-transfer plates, testing, and first-off inspection. These are paid once, no matter how many pieces you order. This is the part that gets divided down.
| Cost | Type | What happens as quantity rises |
|---|---|---|
| Fabric, lining, hardware | Variable | Scales with units — unit cost almost flat |
| Cutting, sewing, assembly labour | Variable | Scales with units, falls slightly as operators speed up |
| Pattern, sample, grading | Fixed | Paid once — unit cost falls |
| Cutting dies, logo screens, plates | Fixed | Paid once per style — unit cost falls |
| Machine setup, first-off inspection | Fixed | Paid once — unit cost falls |
| Export cartons and packing | Semi-variable | Carton sizes can be optimised |
If a factory barely moves its price between tiers, it is passing on variable savings only. If it moves sharply on the first jump and then flattens, you are watching fixed cost get absorbed.
The Four Costs That Fall as Volume Rises
Fabric MOQ and Mill Price Breaks
Fabric mills have their own minimums — often a few hundred metres per colour, more for a custom dye lot. On a small order you may be buying a stock colour, or paying for a short dye run. On a large order you buy full rolls at the mill’s own price break. On stock-spec bags this is usually the smallest of the four effects, because the fabric was going to be bought anyway.
Tooling, Dies and Setup Amortisation
Cutting dies, silk screens for logo printing, and heat-transfer plates are one-off. A US$300 set of screens on 300 bags adds US$1.00 per bag. On 3,000 bags the same screens add US$0.10. Nothing about the printing changed — only the number it is divided by. This is the effect that makes custom orders move more than stock orders.
The Labour Learning Curve
The first fifty pieces of a new style are always the slowest. Operators learn the seam sequence, the tricky corners, where the lining has to be tucked. Output per hour climbs through the run and settles by the second or third thousand. Factories price that early inefficiency into small orders, because there is nowhere else to put it.
Packaging and Carton Efficiency
Master cartons come in fixed sizes. A small order often ships in cartons that are half empty, paying for volume it does not use. A large order justifies a custom carton — which is why bulk freight per bag can improve before the unit price even changes. The trade term you quote on decides who captures that saving.
A Worked Example: One Backpack at Three Volumes
Take a mid-weight business backpack — 600D polyester, padded laptop sleeve, two zipped pockets, custom logo. The bag’s variable cost is close to identical at every volume. What changes is everything around it.
| Cost element | 300 pcs | 1,000 pcs | 3,000 pcs |
|---|---|---|---|
| Materials & hardware | Same per bag | Same per bag | Same per bag |
| Labour (with learning curve) | Higher | Mid | Lowest |
| Pattern & sample, per bag | High | Low | Negligible |
| Logo screens & setup, per bag | High | Low | Negligible |
| Carton & packing | Standard carton | Standard carton | Custom carton |
| Relative unit cost | 100 | ~96 | ~92 |
Note the shape, and note the scale. On stock-spec bags the total movement from the smallest to the largest tier usually lands under 10% — the first jump does most of the work, and the second jump is smaller again. On a fully custom bag the first jump is much larger, because tooling and development sit on the small-quantity quote.
Why the Second Jump Is Always Smaller
Once fixed cost per bag approaches zero, the only lever left is variable cost — and variable cost does not fall with volume the way fixed cost does. You still buy the same fabric, the same zipper, the same thread for every bag. The floor is the material.
Three things follow from that:
- The largest percentage saving is almost always in the first move up from the smallest order.
- Doubling from a large base buys very little. Doubling from a small base buys a lot.
- A quote that keeps dropping steeply at every tier is either cutting the specification, or was inflated at the start. If a factory offers 15–20% off for the first jump on a stock bag, ask what the small-quantity price included.
How to Decide Which Tier to Order
A lower unit price is not automatically the better order. Every extra bag you buy to reach a tier is stock you pay to store, insure, and eventually risk writing off. The right tier is the one where the saving on the units you actually need beats the cost of the units you did not.
Run three numbers:
- Unit saving — price at the smaller tier minus price at the larger tier.
- Extra units — how many more you must buy to reach the larger tier.
- Holding cost — storage, insurance and tied-up cash, over the months those extra units sit.
If the unit saving across your realistic annual volume is larger than the holding cost of the surplus, move up. If it is not, buy at the lower tier and reorder.
| Your situation | Buy at |
|---|---|
| Steady, predictable sell-through | The tier that covers 3–6 months of demand |
| Launching an unproven design | Lowest viable tier, then reorder |
| Custom colour or logo (long lead time) | Higher tier — a reorder costs you a full cycle |
| Fast-changing fashion colours | Lower tier — obsolescence risk dominates |
| Filling a container with mixed styles | Optimise the container, not each tier |
Two existing guides go deeper on the pieces of this: how factories calculate MOQ and how to negotiate it, and where the money in a backpack actually goes.
How Tiers Work on This Site
Every product page here shows two pricing tracks, because they are two different ways of buying.
Ready stock — MOQ 50 pcs per colour, tiers at 50–199 / 200–499 / 500+. These are finished bags in stock. Short lead time, no tooling, standard specification. This is the track for testing a market or filling a gap quickly.
Custom order — MOQ 300 pcs per colour, tiers at 300–999 / 1,000–2,999 / 3,000+. Your logo, your colour (Pantone matching from 500–1,000 pcs), your packaging. The tiers here reflect tooling and setup, which is why the first jump matters most.
The two tracks are not directly comparable. A ready-stock price is for a bag that already exists; a custom price is a manufacturing quote that includes development. Compare like with like — top tier to top tier, small order to small order.
You can see both tracks live on any product page, for example the Camo Laptop Backpack or the Color-Block Tote Bag with Chain Strap. For the full ranges see laptop backpacks and PU leather handbags. And if you are planning a custom run from scratch, the tech-pack-to-sample walkthrough covers development before pricing.
How to Request a Tiered Quote
To get a quote you can actually compare, send the same information you would send for a single price:
- Quantities you want priced — give at least two, for example 500 and 1,500
- A style reference or a photo with dimensions
- Fabric and lining, or ask for a recommendation
- Logo method and position
- Packaging — polybag, hangtag, retail box?
- Trade term — EXW, FOB or DDP
A factory that prices every tier from one specification sheet is easier to compare than one that prices each tier from a different assumption. Send your requirements and we reply within 24 hours.
FAQ: Backpack Price Tiers
Can doubling the quantity halve the unit price?
Almost never. Halving would mean fixed cost was half your quote. In practice the first doubling might save 4–8%, and the next much less. If a factory promises 50% off, ask what came out of the specification.
Why do two factories give different tier prices?
Different fixed-cost structures, different material buying power, and different assumptions about your spec. Compare the top tier to the top tier and the bottom to the bottom — never one factory’s small-order price against another’s bulk price.
Can I mix ready-stock and custom pricing?
Only if the bag is genuinely the same. A ready-stock price is for a finished bag; a custom price includes development and tooling. Blending them hides the real difference.
Is there a price below MOQ?
Below 50 pcs for stock we cannot quote — packing and freight per bag stop making sense. Above MOQ every tier is a real reduction, but a diminishing one.