Most brands know their revenue.

Very few know their sell-through.

And revenue is the number that lies to you.

A style can bring in good money and still be a failure if you made 300, sold 180 on discount, and called it a hit because the total looked fine.

Revenue hides the dead stock. Sell-through doesn’t.

This guide is about one decision you make every season: for each style, do you reorder it, refresh it, or retire it?

Sell-through is how you answer that without arguing, without ego, and without falling in love with a piece your customers have quietly stopped buying.

It assumes you already run some version of a core, seasonal, and drop structure.

If that’s new to you, the tier model is explained in our guide to the streetwear drop model, and how to allocate budget across those tiers sits in the autumn/winter buy plan.

This piece picks up after that: how to read what each tier did and what to do next.

Chapter 01

What sell-through actually measures?

Sell-through rate is simple, and the simplicity is the point.

The definition:

Sell-through % = units sold at full price ÷ units produced
 

Measured inside a defined window. Both of those qualifiers full price, fixed window are where honesty lives.

The two words that stop it from lying to you:

“Full price” is the first. A unit that only moved because you took 30% off did not prove demand; it proved you can buy your way out of stock.

Counting discounted units as sell-through is how brands convince themselves a dead style was fine.

If you want the number to mean anything, count what sold at the price you meant to charge, and track the discounted units separately as what they are: recovered loss.

“Units produced” is the second not, not units listed, not units you had in the good sizes.

The whole run. If you cut 200 and 60 of them, where 200 were XS and 3XL, those 60 are still in the denominator. That’s deliberate.

A size curve that produces stock you can’t sell is a sell-through problem, and hiding it flatters the number.

Related:

Sell-through also does a second job inside a drop’s profit-and-loss model, where it drives break-even and margin of safety.

This guide is about the range decision it feeds; that guide is about the money math. They use the same number for different jobs.

One more distinction. Sell-through is not the same as sell-out.

A style can hit 100% and still have been a mistake if it sold out in a day because you made far too few; you left money on the table.

Sell-through tells you how much of what you made was right. Pair it with how fast it sold, and you get the full picture.

Chapter 02

What “good” looks like benchmarks by tier?

Here’s the mistake: brands apply one sell-through target to the whole range.

But a good number for a drop is a terrible number for a core style, and vice versa.

Each tier is doing a different job, so each tier has a different bar.

Tier Healthy full-price sell-through Measured over What the number is telling you
Core 80-90% 12-16 weeks (full season) Steady, predictable demand. Core should not sell out fast; if it does, you under-bought a reorderable style.
Seasonal 70-85% 8-12 weeks The refresh landed. Should clear cleanly within the season, leaving little to discount.
Drop 95-100% The drop window Scarcity worked. A drop that limps to 60% wasn’t a drop; it was inventory with a countdown.

The drop figure is the one benchmark already established across our guides; a release that clears 95–100% in its window is doing its job.

Core and seasonal targets sit lower on purpose, because those tiers are built to be available, not scarce.

Why is the core’s target lower than you’d expect?

Founders assume the best styles sell out. For a drop, yes.

For core, a fast sell-out is a failure signal; it means a dependable, reorderable style ran out and stopped earning while you waited on a restock.

Core is supposed to be deep enough to stay on the shelf and keep converting.

You’re aiming for high, steady clearance across a long window, not a spike.

From the floor:

The number that fools people is the one that looks fine on revenue.

A style can gross well and still have cleared most of its run on markdown; the cash came in, but the margin didn’t.

That’s why we judge a season on full-price sell-through, not total units moved.

When we sit down over a client’s numbers, the styles that quietly failed are rarely the ones with low revenue.

They’re the ones that hit their revenue target the hard way, on discount, and got mistaken for winners.

Strip the markdown out, and the real performers separate from the ones that merely cleared.

Chapter 03

Setting the window you measure over:

A sell-through number with no window attached is meaningless.

80% is excellent in eight weeks and mediocre in eight months.

Decide the window before the season, so the verdict isn’t something you negotiate with yourself afterwards.

  • Core: a full season, 12-16 weeks. Core is a long game. You want to see steady clearance across the whole selling period, not a fast start.
  • Seasonal: 8-12 weeks. A seasonal piece has to clear inside its season, or it becomes a discount. The window is the season, minus the runway you need for markdown.
  • Drop: the drop window itself. Hours to days. If it hasn’t cleared when the window closes, that’s your answer.

The rule underneath all three: the window ends before your discount does.

If you’re measuring sell-through into a period where you’ve already started marking down, the number is contaminated.

Draw the line on the last day of full-price selling.

Chapter 04

Promote: earning a style into core

This is the decision nobody documents.

Everyone knows core styles exist.

Almost no one has a rule for how a style becomes one. It shouldn’t taste.

It should be sell-through.

A style earns promotion to core when it clears three bars, in order:

  • It hit the sell-through bar for its current tier. A seasonal piece that cleared 70-85% at full price, or a drop that sold out clean, has proven demand. A style that needed discounting has not stopped here.
  • It’s reorderable. Demand alone isn’t enough. The fabric has to be a running quality you can source again, the fit has to be settled, and the design has to survive a color change. A sold-out one-off mill lot is a great drop and a bad core candidate.
  • It repeated, or you have a strong reason to believe it will. One hot season can be a fluke. Two is a pattern. If you’re promoting on a single season, promote cautiously a modest core commitment, not a deep one.

Clear all three, and the move is mechanical: lock the spec in writing, seal a dated sample, and reorder it as core.

Do not redesign it on the way. The single most common way brands waste a proven style is “improving” it into something unproven.

Related:

Promotion is also where price starts working for you. A style you reorder repeatedly is a different quote than a one-off volume, and repetition is what moves a unit price. The mechanics of that are in our MOQ and pricing guide.

From the floor:

The promotions that work are the boring ones.

A style earns its way into the core by repeating the same shape and the same demand, with two seasons running not by being the most exciting thing we sampled.

The temptation every time is to “improve” a proven piece on the way into a bulk order: nudge the fit, upgrade the trim, and swap the fabric hand.

That’s how a sure thing becomes an unknown again.

Once a style has earned promotion, our job is to reproduce it exactly; we cut against the sealed sample from its first successful run, not against a “better” version of it.

Chapter 05

Refresh or retire: the honest cuts

Promotion is the fun direction. This is the one that keeps you solvent.

When a style misses its sell-through bar, you have two options, and picking the wrong one is expensive.

The dividing question is simple: was it the style, or was it the execution?

Refresh: when the shape works but the surface doesn’t

If the silhouette sold but a specific color or print dragged the number down, that’s a refresh, not a retirement.

The block is proven; the execution missed.

Run it again with one lever changed to a different colorway and a new decoration before you judge the style itself.

You’re not redesigning. You’re reshooting.

Retire: when the style itself underperformed

If the style missed its bar across the board, in colors that should have worked, kill it.

Discount the remainder to recover cash and move the position to something that earns.

The trap here is the fourth sample round the urge to “fix” a style that the market has already voted on.

Three rounds and a bad season is a clear answer.

Related:

Core styles get retired too; that’s the part brands skip.

A three-question retire test for carry-over pieces (did it clear at full price, would you re-cut it unchanged, can the factory reproduce it exactly) is laid out in the autumn/winter buy plan.

If a core style only clears on discount, it isn’t core anymore; it’s a habit.

Chapter 06

Drops as paid experiments that feed the range:

The drop tier does something the other two can’t: it runs cheap experiments that the sell-through number then reads for you.

Fifty units of a strange idea is the least expensive market research in apparel.

You get real money from real customers on a real product, not a survey, not a poll.

And sell-through is the readout. A drop that clears 95-100% and leaves a waitlist behind hasn’t just made a little money.

It has handed you a promotion candidate for the price of a minimum order.

Worked example of the loop:

Season 1. You run a boxy heavyweight as a 50-unit drop. It clears in under 48 hours and the waitlist keeps growing after it’s gone. Sell-through: ~100%.

Season 2. That’s the promotion signal from Chapter 4. You calm the design down, lock the spec, and bring it in as a seasonal at a deeper quantity. It clears cleanly, around 80% full-price within the season.

Season 3. Two clean seasons. It graduates to core, in your two safest colors, bought deep. A weird 50-piece bet is now a forecastable revenue line and you never gambled a large run to find out.

That’s the whole point of keeping a drop tier even once you’re established. It’s not only a hype engine.

It’s the intake valve for your core range; the low-risk way new styles audition before you commit real money to them.

Chapter 07

The season review:

Run this once at the end of every season, before you brief the next one.

It’s the ritual that turns sell-through from a number you glance at into a system that actually moves your range.

Season review sell-through pass:

Season / Year:
  1. Every style listed with units produced and units sold at full price.
  2. Full-price sell-through % calculated per style (discounted units excluded).
  3. Each style tagged to its tier and measured against that tier’s bar.
  4. Verdict per style Promote / Refresh / Retire.
  5. Promotions: spec locked, sample sealed, reorder quantity set.
  6. Refreshes: which single lever changes (color or decoration, not the block).
  7. Retirements: remainder discount plan, position freed for next season.
  8. Any core style that is only cleared on discount flagged for demotion.
  9. Size-curve read: which sizes are stranded, curve adjusted for next run.
Promote:

Hit its bar; reorderable, repeatable. Lock the spec, seal a sample, and reorder as core unchanged.

Chapter 04

Refresh:

Shape worked, execution missed. Change one lever and run it again before judging the style.

Chapter 05

Retire:

Missed across the board. Discount the remainder, free the position, and don’t sample it a fourth time.

Chapter 05

Chapter 08

Reorder before the window closes:

Sell-through is only useful if you can act on it in time.

And the signal usually arrives early, often in the first few weeks, that a style is moving faster than you planned.

The problem is that by the time you’re sure, the fabric is gone from the mill’s current run, and a reorder that only made sense inside the season now lands into a discount market.

Two habits close that gap:

  • Set the reorder trigger in advance. Write it down before the season, while you’re calm: “If any style is above X% sold through by week three, we reorder that week.” A trigger set in advance gets pulled. One you debate in the moment gets debated until it’s too late.
  • Hold fabric, not finished goods, on your safest styles. Uncut fabric held at the factory is far cheaper than finished inventory and removes the slowest step from a reorder. It’s the single most useful thing a small brand can do to actually service a winner mid-season.

Related:

The fabric-hold tactic and the mid-season reorder countback are covered in full in the autumn/winter buy plan.

The minimums and deposits that govern a reorder are in the MOQ and pricing guide.

This chapter is only here to make one point: measure sell-through early enough that the reorder still lands in the season.

Do all of this and your range stops being a collection of one-off bets and becomes a loop:

Measure, promote the winners, refresh the near-misses, retire the misses, and reorder in time.

The number does the deciding. You just have to be honest about what you count.

Questions we get asked

There isn’t one number, because it depends on the tier.

A drop should clear 95 to 100 percent within its window, because scarcity is the point.

A core or seasonal style is judged over a longer window and against a lower bar, because those pieces are built to stay available rather than sell out.

The most common mistake is applying a single target to the whole range.

Always measure full-price sell-through against the bar for that specific tier.

Divide the units you sold at full price by the total units you produced, measured inside a defined window.

The two things that make the number honest are counting only full-price sales, not discounted ones, and using the whole run in the denominator, including sizes that never moved.

A number that includes discounted units or excludes stranded sizes will flatter a style that actually failed.

No. Track them separately. A unit that only sold because you marked it down did not prove demand; it recovered a loss.

If you fold discounted units into your sell-through, a dead style can look like a success, and you will reorder a piece your customers only bought on sale.

Count full-price sales for the sell-through verdict, and keep discounted units in a separate line as recovered cash.

Ask whether it was the style or the execution. If the silhouette sold but one color or print dragged the number down, refresh it: run the proven block again with a single lever changed.

If the style missed its sell-through bar across the board in colors that should have worked, retire it, discount the remainder, and free the position.

The trap is a fourth sample round on a style the market has already rejected.

Through sell-through, over more than one season.

A drop that clears close to 100 percent and leaves a waitlist has proven demand cheaply.

If the style is also reorderable, meaning the fabric is re-sourced and the fit is settled, and it repeats across a second season, it has earned promotion to core.

Lock the spec, seal a dated sample, and reorder it deeper without redesigning it.

Promoting on a single hot season is possible but should be done with a modest first core commitment, not a deep one.

From the HOODIE manual

This is one chapter of The Complete Hoodie Manufacturing Guides

These chapters cover taking a hoodie brand from idea to shipped units, costing, sourcing, tech packs, QC, freight, and launch comparisons. All written from the Sialkot factory floor of Gibben Clothing.

Open The Full Hoodie Guides

On the floor · Sialkot

Written by

Faizan Ahmad

Chief Apparel Technologist & Head of Manufacturing, Gibben Clothing · Sialkot, Pakistan

Faizan leads production at Gibben Clothing, a cut-and-sew streetwear manufacturer in Sialkot, with 8+ years turning raw yarn into retail-ready hoodies, tees, bottoms, jackets, tracksuits, and headwear. He doesn’t just write about clothing; he works the floor, so every guide here is grounded in real fabric behavior, QC standards, and production data from live runs.