This guide is about one decision: how to divide a hoodie production run across sizes.

Not whether to do a drop, not how many units in total, not the launch calendar, but the size split itself, and not how it survives contact with a factory minimum.

It’s the step most first-time brands get wrong at the cut table.

They approve a great hoodie, set a sensible total quantity, then split it into equal stacks per size because it feels fair. It isn’t.

Real bodies don’t distribute evenly, so an even cut order guarantees leftover stock in the sizes nobody was going to buy and a fast sell-out in the sizes everybody wanted.

Dead odd-size stock is pure locked capital: you paid the full landed cost to make it, and you’ll recover little.

Getting the curve right is one of the cheapest margin wins available to a brand placing a custom hoodie order.

Scope check. This page assumes your total number is already set. If it isn’t, our guide to sizing a drop to demand covers the total-quantity call, and the drop P&L walkthrough covers the money. Here we take that total and split it correctly.

Chapter 01

Why a Hoodie Run Needs a Sizing Curve?

A sizing curve is the percentage split of a production run across sizes.

Instead of cutting equal numbers of every size, you weight the run toward the sizes people actually buy.

The alternative, an even split, fails for a simple reason:

Adult body sizes follow a bell shape, not a flat line.

Demand piles up in the middle sizes and thins out fast at both ends.

Cut evenly against a bell-shaped demand, and two things happen at once.

  • Your core sells out early. M and L go first, often within the drop window. Buyers who wanted your best-selling sizes hit “sold out” while stock still shows in sizes they don’t wear.
  • Your tail becomes dead stock. The XS and XXL+ you cut in equal numbers sit unsold. On a hoodie that’s expensive: you’ve paid for fabric, cut-make-trim, trims, and decoration on units that were never likely to move.

The curve fixes both.

It’s the piece of math that turns one total order quantity into a per-size cut order a factory can actually produce and the difference between a run that finishes clean and one that leaves capital folded in a box.

An even-size split isn’t neutral. It’s a decision to overstock your worst sizes and understock your best ones.

Chapter 02

The Baseline Hoodie Sizing Curve:

Start from an industry baseline, then adjust.

For adult upper-body garments, aggregated order data across thousands of runs lands in a consistent shape:

Large is the single biggest size, followed by medium, XL next, small forming the lower shoulder, and XXL and above trailing into a thin tail.

Because hoodies are sized like other upper-body pieces, that distribution transfers well as a hoodie starting point.

A clean working baseline looks like this:

Size Baseline %   Units / 300
S 10%   30
M 28%   84
L 32%   96
XL 19%   57
XXL 8%   24
3XL+ 3%   9

 

Read the right column as a worked example.

On this baseline, a 300-unit hoodie run puts roughly 180 units, well over half, into M and L combined.

That concentration is the whole point.

Your fabric, your cut hours, and your best decoration all flow to the sizes most likely to sell.

Two things to hold lightly about this baseline.

It’s an average, so it’s a starting frame, not your answer.

Chapter 3 is about bending it.

And the most valuable version of this table is one you don’t have yet:

Your own size-level sell-through, which beats any industry average the moment you have a single drop behind you (Chapter 7).

Chapter 03

Bending the Curve for Your Hoodie:

The baseline assumes a standard-fit garment and a mixed audience.

Your hoodie usually isn’t standard, and your audience usually isn’t average.

Four hoodie-specific factors move the curve sometimes hard.

Fit block: oversized and drop-shoulder pull the curve inward

This is the big one for streetwear hoodies.

When the intended look is oversized, buyers get that look from the fit, not from buying up a size.

Many size down or buy true-to-size for a roomy drape. The effect:

Demand concentrates even harder in S-L, and the need for XXL and above shrinks, because the largest buyers are already covered by a generously cut L.

A boxy, drop-shoulder block runs a tighter curve than a standard fit would.

Fabric weight changes how a size wears:

A heavyweight hoodie (400 GSM and up) wears bulkier and warmer than a midweight one at the same measurement.

That nudges some buyers down a size for a cleaner look, and it changes your fit-return pattern by size.

If you’re running a heavyweight block, watch the S/M boundary especially; it’s where sizing down shows up first.

Document the GSM against fit so the curve and the returns line up.

Cut: unisex vs. gendered grading

Most streetwear hoodies ship as a single unisex block.

A unisex hoodie bought by a mixed audience needs a slightly wider spread than a men’s-only run, because women buying into a unisex block typically size down, adding weight to S and XS that a men’s grade wouldn’t carry.

If you offer separate men’s and women’s grades, each gets its own curve.

Audience and region:

A younger or more female-leaning audience shifts weight toward the smaller sizes; an older, male-leaning, or athletic audience pulls toward L/XL.

Region matters too:

North American demand skews larger, while several European and Asian markets keep M as the top size.

If you sell across regions, your curve is a blend and eventually worth splitting by fulfillment region.

The pre-order shortcut:

If you can capture size intent before you cut a sized waitlist or a pre-order, do it.

Real declared sizes from real buyers turn the whole guessing problem into an ordering problem.

Even a partial pre-order sharpens the curve more than any adjustment rule.

For the underlying measurements and how a block is graded across sizes, see our streetwear size guide and the breakdown of pattern making and grading.

Chapter 04

Splitting the Total Across Sizes and Colors:

A curve gives you percentages.

A factory needs a cut order: exact whole-unit counts per SKU.

Bridging the two is simple arithmetic, but there are two traps that cost real money.

Step 1: Apply the curve, then round to whole units

Multiply your total by each size’s percentage, then round to whole pieces. You can’t cut 8.4 hoodies.

Round the middle sizes to clean numbers, and let the tail absorb the rounding.

Never round a tail size up just to make the total tidy.

Step 2: Remember the curve runs inside each color

Here’s the trap that catches most brands:

The sizing curve applies per colorway, not across the whole run.

If you’re cutting two colors, each color gets its own full curve.

Two colors × six sizes is twelve SKUs, and every one of them needs a count.

A 300-unit run, two colorways, and a baseline curve. Figures show the shape; replace with your real total and curve.
Size Curve % Black (150) Bone (150) Total
S 10% 15 15 30
M 28% 42 42 84
L 32% 48 48 96
XL 19% 29 28 57
XXL 8% 12 12 24
3XL 3% 4 5 9

Step 3: Sanity-check each SKU against your minimum

Look at the tail rows above. On this run, 3XL is four or five units per color.

That’s the flashpoint for the next chapter: at a low minimum, per-color tail counts get so small they stop being worth cutting.

Which is exactly where a factory minimum reshapes the plan.

Hand your manufacturer this grid total, per color, per size, not a single total number.

A clean SKU grid is what lets a factory quote and cut accurately, and it’s the artifact your hoodie manufacturer actually works from.

Chapter 05

How a Low MOQ Truncates the Curve?

Minimum order quantity is the smallest run a factory will cut for a style, and for custom cut-and-sew, it’s usually set per color, because each colorway means its own fabric lot, cut, and line setup.

At Gibben Clothing, that floor is 50 pieces per color, which is deliberately low so emerging brands can test a hoodie without over-committing.

A low minimum is a gift for cash risk. But it does something specific to your curve that you have to plan for: it truncates the tail.

The tail collapses at small per-color counts:

Run your curve against 50 pieces and watch the fringe sizes.

A size that’s 3% of your curve is 1-2 units at 50 pcs.

A size that’s 8% is four units.

At those counts, cutting the size adds grading, marker, and handling costs for almost no sellable stock, and a single return wipes out the size’s contribution entirely.

The same baseline curve at 50 pcs/color vs. 150 pcs/color. Watch the tail sizes fall below a viable cut.
Size Curve % @ 50/color @ 150/color Call at 50
S 10% 5 15 Keep
M 28% 14 42 Keep
L 32% 16 48 Keep
XL 19% 9 29 Keep
XXL 8% 4 12 Borderline
3XL 3% 1–2 4–5 Drop

The practical rule:

On a first hoodie drop at a low minimum, most brands run a compressed size range, commonly S through XL, sometimes adding XXL, and hold the larger sizes back until volume or sell-through data justifies them.

You lose almost nothing: the sizes you drop were a handful of units that were unlikely to clear cleanly anyway.

Redistribute that curve percentage into M and L, where it will actually sell.

Confirm the floor before you design the range:

Know your per-color minimum before you finalize the size range and the colorway count, not after.

A curve built for a range the minimum can’t support forces a scramble at the worst moment.

See how the floor is set in our low-MOQ manufacturing breakdown.

Chapter 06

Approving Fit Across the Size Set:

One sample proves one size.

A production run is a whole graded set of sizes, and grading the rules that scale a pattern up and down can drift at the extremes.

A hoodie that fits perfectly in M can come out with a hood that’s too shallow on S or sleeves that run long on XXL if the grade isn’t checked across the run.

So the sizing work isn’t finished when your base-size sample is approved.

Before bulk, confirm the fit holds across the curve.

  • Approve the base size first. Lock fit, fabric, and construction on your core size (usually M or L); that’s your golden reference.
  • Then check the grade at the edges. Pull a size set that includes your smallest and largest planned sizes and confirm the proportions still read right: hood depth, body length, sleeve length, and rib width. The extremes are where grading errors surface.
  • Match the check to your real range. If Chapter 5 compressed your range to S-XL, you only need the grade validated across S–XL. Don’t pay for sample sizes you aren’t cutting.

This is the one sizing step there’s no shortcut for.

A grading error caught on a size-set sample costs a revision.

The same error caught after bulk costs you every unit in the affected sizes.

For the full sampling sequence and what to inspect at each round, see our guide to sourcing a streetwear sample.

Chapter 07

Size-Level Sell-Through and Your Next Curve:

The first drop is where you stop guessing the curve and start knowing it.

The single most valuable number a drop produces isn’t total sell-through; it’s sell-through by size.

Capture it before the details fade.

  • Which sizes sold out, and how fast. The sizes that cleared first are under-weighted in your current curve.
  • Which sizes were left over, by exact count. Leftover units by size and color are your overweight sizes, in hard numbers.
  • Size-level returns. A size that sold well but came back heavily is a fit-grade signal, not a demand signal worth separating.

Feed each of these straight back into the curve.

Sold out of M in an hour with leftovers in XL?

Your next run shifts weight from XL into M.

Do this for two or three drops,, and your curve stops being an industry average and becomes yours, the compounding edge no generic size chart can match.

Hold reserve where the tail is thin:

If the same core sizes sell out first every drop, holding reserve fabric lets you restock those specific sizes fast without recutting the whole range.

The reorder mechanics minimums, deposits, and lead time are covered in our MOQ and reorder guide.

Everything downstream of the size split the restock decision, the launch calendar, and the drop P&L lives in the guides this one links up to.

Get the curve right first, and every one of those decisions gets easier.

Frequently asked questions

Start from a demand-shaped sizing curve, not an equal split.

For a mixed adult audience, most of a hoodie run sits in M and L, with S and XL on either side and only a thin tail in XXL and above.

Apply your curve percentages to your total order quantity, round to whole units per size, and drop any fringe size that rounds down to one or two pieces on a small run.

Once you have your own size-level sell-through, that data replaces the industry baseline.

A sizing curve is the percentage split of a production run across sizes.

Instead of cutting equal numbers of every size, you weight the run toward the sizes people actually buy, which for adult hoodies clusters heavily in the middle.

A curve is what turns one total order quantity into a per-size cut order your manufacturer can produce.

On a small run, it is often not worth it. If a size works out to only one or two units after you apply your curve, cutting it adds grading and handling costs for almost no sales.

Many brands run S to XL only on a first drop at a low minimum, then add the larger sizes once volume or sell-through data justifies them.

Yes. Buyers chasing an oversized look often size down or buy true to size for a roomy fit, so demand concentrates even harder in the core middle sizes, and the need for the largest sizes shrinks.

If your block is drop-shoulder or boxy, expect a tighter curve around S, M, and L than a standard fit would give you.

Start from an industry baseline for upper-body garments, then adjust it for what you know about your own audience, fit, and region.

A pre-order or a size waitlist is the strongest shortcut, because it captures real size intent before you commit to fabric.

After your first drop, your own size-level sell-through becomes the most accurate curve you will ever have.

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.