WALL 01
The second layer
Self-lining. Two layers brace each other. This is where shape starts.
We build hoods for a living. We have cut, sewn, and rejected enough of them to know exactly where shape comes from.
It is not luck. It is a stack of small, repeatable construction choices.
Buyers pull the hood up first. If it collapses, sags, or twists, the whole garment reads cheap even when the fabric and the print are perfect.
This guide treats the hood as its own engineered component, not an afterthought stitched on at the end.
By the time you finish, you will know how to build a double-layer hood that stands on its own and stays that way after washing.
Chapter 01: Structure
Single vs. double-layer hoods:
This is the first decision, and it shapes everything after it.
A single-layer hood is one layer of fabric.
A double-layer hood is self-lined, with two layers sewn as one.
The choice sets warmth, weight, and how much shape the hood can hold.
The short answer:
If you are selling the hood on its structure, build it double-layer.
Two layers brace each other, hide every raw edge, and hold their loft through washing.
One layer of soft knit has nothing to resist gravity with.
What is each build actually?
A single-layer hood uses one thickness of main fabric. It is lighter, uses less material, and is cheaper.
But it has nowhere to hide its seams; the neckline join and back seam show inside, and it has almost no body.
A single layer of French terry or jersey wants to flop.
A double-layer hood is two layers treated as one unit.
The outer layer faces the world; the inner lining faces the head.
Sew the front edge, and you trap both raw edges inside, giving a clean, finished tunnel of fabric.
This is the structure most premium hoodies use.
Why does the second layer hold shape?
Think of one sheet of paper versus two glued together. One curls. Two stand.
A hood works the same way.
- It doubles the wall thickness. More material means more resistance to collapse.
- It hides the seams. No raw edges flapping inside to drag the shape down.
- It frames the face cleanly. The drawcord channel sits between two clean layers, so the front edge stays crisp.
- It survives washing. Two layers hold loft far longer than one thin layer that goes limp after a few cycles.
| Build | Use it for | Trade-off |
|---|---|---|
| Single-layer | Lightweight summer hoodies, drape-led fashion pieces, tight cost targets | Visible seams, minimal structure, goes limp in the wash |
| Double-layer | Heavyweight hoodies, structured streetwear, anything sold as premium or built-to-last | More fabric, more cost, more assembly time |
Everything after this chapter assumes a double-layer build. It is the foundation for a hood that holds its shape.
Chapter 02: Shaping
Hood panels and head fit:
Layer count gives you body.
Panel count gives you fit.
A hood is a 3D shape trying to cover a round head, and the number of panels decides how well it does that.
The 2-panel hood:
Two mirror pieces, joined by one seam running over the crown from front to back.
Fast, cheap, and the fewest pattern pieces.
But it is essentially flat. Sewists describe pulling a 2-panel hood over a head as slipping an envelope over a tennis ball; the shape does not follow the curve of the skull.
Worn down, it pinches to a point at the back. Fine for budget pieces. Not for a hood you want to look at.
The 3-panel hood:
A 3-panel hood adds a center strip running over the crown, between the two side panels.
That strip is the whole difference.
The side panels become the walls; the center panel becomes the roof.
The spec that matters
Set the center crown panel at roughly 10 cm (4 in) finished, plus seam allowances.
Narrower (7.5 cm) reads slim and close; wider (12.5 cm+) reads full and oversized.
Cut it, put it on a head, then decide never to spec a panel width from a drawing alone.
Sewing the curved-to-straight seam:
Here is the catch that trips up new patternmakers.
When you join the curved side panel to the straighter center panel, the two seam lines are the same length, but the cut edges are not.
The curve’s outer edge runs longer.
- Do not stretch one to force the other. Match at the seam line and ease the curve in.
- Notch generously. Match points every few inches to keep the panels aligned.
- Sew with the curved piece on top so the operator can ease it under the needle.
- Press before judging. Curves always look worse unpressed.
Finishing the panel seams:
In a double-layer hood the lining hides these seams, so a plain seam pressed open is enough.
On a single-layer hood, they show and they need a real finish flat-felled (trim one allowance, fold the other over, topstitch) for a flat, tidy, professional look, or a French seam to enclose the raw edge entirely.
Chapter 03: The channel
The drawcord channel:
The channel: The casing or tunnel the cord runs through along the front edge is a small detail buyers notice instantly.
A clean, even channel reads as quality. A wavy, lumpy one undoes all your other work.
Building it into a double-layer hood:
- Join outer and inner layers along the front (face) edge and right sides together.
- Turn the right side out and press the front edge flat and crisp.
- Topstitch two parallel lines back from the edge. The gap between them is the tunnel; the cord runs inside it.
The distance between those two lines is your channel width.
Keep it even the whole way round.
Uneven topstitching is the number-one tell of a rushed hood.
| Element | Working figure | Why |
|---|---|---|
| Hem allowance | ≈ 4 cm (1 5/8 in), folded twice | Lands on a clean, finished casing. |
| Finished channel | 1.5 – 2 cm | Comfortably carries a standard cord. |
| Cord diameter | 6 – 8 mm | Specify the cord first, then size the channel to it. |
| Topstitch length | 3 – 3.5 mm | Longer stitch = clean line, no puckering. |
What keeps a channel clean?
- Press the front edge hard before topstitching. A pressed edge gives a straight line to follow.
- Baste first if the operator is new to the step. Stitch, check, then sew for real.
- Bar-tack the channel ends near the eyelets so cord tension cannot pop the stitching.
- Mind the stretch. On knits, a straight lockstitch keeps the channel from waving. Save the serger for the seams.
Where does the channel meet the neckline?
The channel should end cleanly above the neckline join, not run into it.
On a zip-up, the eyelets and channel must sit above the zipper opening so the cord exits cleanly, an easily missed detail and a common reason cords end up in the wrong place.
Plan it on the pattern, not at the machine.
See our zip-up vs. pullover guide for how the closure changes this.
Chapter 04: Cord exits
Eyelets vs. sealed exits:
The cord has to leave the channel somewhere.
Metal eyelets, sewn holes, or a hidden exit each look different, cost differently, and fails differently.
| Exit | Reads as | Trade-off |
|---|---|---|
| Metal eyelet | Classic hoodie. Durable metal takes the cord’s friction, not the fabric | Hardware costs a press; a badly set eyelet that tears loose is worse than none. |
| Sewn hole | Soft, minimal, no hardware to scratch or corrode | Thread takes the friction, stretches, and frays faster without reinforcement. |
| Hidden/sealed | The cleanest, most premium front edge. No visible hole | Fiddler to build and thread; limits how the wearer handles the cord. |
The number that stops failures:
Size the eyelet by inside diameter around 7 mm for a standard hoodie drawcord (a 1/4 in / ~6 mm “large” eyelet also works well with thicker cords).
The inside diameter is the hole the cord passes through. Do not confuse it with the outer flange width when you order.
Placement and reinforcement:
This is the step that stops eyelets from tearing out.
- Back the fabric with heavyweight fusible interfacing before setting the eyelet. No heavyweight on hand? Stack two or three lighter layers. This is non-negotiable.
- Position roughly 5 cm (2 in) up from the bottom of the hood, close to the front edge, centered in the channel width.
- Set both eyelets at matching heights. Asymmetric eyelets are an instant QC fail.
- Snip a small “X,” not a wide circle. A tight opening grips the eyelet teeth and resists tearing.
Compliance, if you export:
Selling into the UK, Germany, the USA, or the UAE brings hardware obligations.
Nickel-free, Oeko-Tex certified eyelets are widely available and protect you on skin-contact and chemical-compliance grounds.
Children’s hoods are a special case. Drawcords on kids’ hoodwear are restricted in many markets on safety grounds.
For children’s lines, a sealed or cordless hood is often the compliant route.
Check the destination market’s rules before you spec a cord on a child’s garment.
Chapter 05: The Join
Attaching the hood to the neckline:
This join carries load every time the hood goes up and down, and it is visible the moment the garment is worn open.
It is what makes the hood feel like part of the garment rather than bolted on.
The center-front symmetry check:
Before anything else, check symmetry at the center front.
The two hood front edges must meet evenly.
If one side sits higher than the other, the hood will always look crooked, and no finishing can hide it.
If they do not match, unpick, trim a little at the body neck edge on the long side, and re-set the hood. Fix it here. It cannot be fixed later.
Reinforcing the seam with twill tape:
This is the detail that makes a neckline look professional.
After the hood is sewn on, lay twill tape (around 12 mm wide) over the join and edge-stitch it downhood on top, body underneath, tape covering the raw seam.
Why twill tape earns its cost:
It does three jobs in one pass: it covers the raw seam for a clean inside finish, it stops the neckline from stretching out under the weight of the hood, and it anchors a hanging loop at the center back. Tuck the ends under at the center front so nothing frays.
Alternative clean finishes:
- Bias binding. Wrap the seam in bias or jersey tape, soft, clean, and slightly retro.
- Self-fabric facing. In a double-layer hood, the lining rolls down and encloses the seam entirely. No extra tape.
- Coverstitch topstitch. A sporty, ready-to-wear finish.
Pick one to match your price point, then spec it so every unit is finished the same way.
Linking to the collar:
Decide early whether the hood attaches to the body neckline directly or onto a collar band.
That decision changes the pattern and the assembly order.
Treat the hood and the collar as one connected system, not two separate jobs.
Chapter 06: Structure
Lining and interfacing:
This is the chapter that solves floppiness directly.
Everything before it builds the hood.
This is where you make it stand.
Why hoods go floppy:
A hood flops for a simple reason: not enough material doing the work.
A single thin layer of soft knit has no rigidity, so gravity wins.
Washing makes it worse: fabrics relax, loft drops, and a hood that started fine goes limp after a few cycles.
The fix is not stiffness.
It is structure enough body to hold a shape, with enough softness to still feel like a hoodie.
The rule we hold to:
Lead with the double layer for the overall body.
Add interfacing only behind the eyelets, at the collar seam, and optionally lightly along the front edge.
A fully interfaced hood feels like cardboard. Nobody wants that.
Where does interfacing earn its place?
- Behind every eyelet. Heavyweight fusible. Mandatory; it stops the eyelet from tearing out.
- At the collar/neckline seam. A small fusible piece between the hood and collar seam adds structure right where the hood needs to lift off the shoulders, without bulk.
- Along the front edge/channel, lightly, if you want the face opening to hold a crisper frame.
Choosing it without ruining the fabric:
- Test the temperature first. Fleece and some synthetics melt under a hot iron. Always use a press cloth, and always test on a scrap.
- Match weight to job. Heavyweight behind eyelets; lighter for a subtle structural lift elsewhere.
- Stack lighter layers to reach heavyweight if you have to.
- Fuse fully and evenly on the wrong side, so it never bubbles or peels after washing.
Structured but soft. That balance is the whole target of this guide.
The Gibben Clothing model
The Four Walls of a Standing Hood:
Every hood that holds its shape is doing four things at once. Lose one wall and the hood sags. Diagnose a floppy hood by asking which wall is missing.
WALL 01
The second layer:
Self-lining. Doubles the wall thickness and holds loft through washing. Without it, nothing else is enough.
WALL 02
The third panel:
A ~10 cm crown strip that follows the round of the head instead of pinching to a point.
WALL 03
The braced edge:
An even channel and interfaced eyelets. Holds cord tension and keeps the face opening crisp.
WALL 04
The anchored join:
Twill-taped neckline plus a fused collar seam. Carries the hood’s weight without stretching out.
Chapter 07: Inspection
QC checks for the hood:
A hood can be built well and still ship badly if nobody checks it.
These are the checks we run before a hood leaves the floor.
They are fast, and they catch what a buyer would catch first.
Symmetry check this first:
- Center-front match. Both hood front edges meet evenly. No step, no overlap.
- Eyelet height. Same height, same distance from the front edge, on both sides.
- Panel balance. On a 3-panel hood, the crown strip runs straight over the top, not pulled to one side.
- Hood sits straight. Worn down, it centers on the back. It does not list left or right.
Construction and finish:
- The channel is even. Topstitching runs parallel throughout with no waver, no skipped stitches.
- Cord slides freely. Pull and release. It glides; it does not catch.
- Eyelets are secure. Tug each one. It does not lift, spin, or tear the fabric.
- The neckline seam is clean. Tape or binding fully caught, ends tucked, no raw edge showing.
The structure test:
The test that matters most for this product.
- Stand it up. A well-built double-layer hood holds a rounded shape when set upright. It does not flatten into a pancake.
- Drape test. Worn down, it lies neat against the back without collapsing or pointing.
- Frame test. Pull the cord. The opening cinches evenly, and the front edge stays crisp.
The wash test:
The real test happens after washing. Build it into QC for every new style.
- Wash a sample to your own care label instructions.
- Re-check structure. It should still stand and still frame. If it goes limp, your layering or interfacing needs revisiting.
- Check the hardware. Eyelets stay set, cord intact, and aglets on.
- Check for distortion. No twisted channel, no wavy front edge, no shrunk-out-of-shape neckline.
Chapter 08: The spec
Specifying the hood in your tech pack:
Everything in this guide is worthless if it lives only in one sewer’s head.
The tech pack is how you make a structured hood repeatable on every unit, in every run, even when the line changes.
Why do vague specs produce floppy hoods?
If the spec leaves a gap, the factory fills it with whatever is fastest, not whatever holds shape.
A precise spec is the difference between a structured hood and a floppy one, repeated across thousands of units.
Cord and exits: the callouts people forget
| Callout | Working figure |
|---|---|
| Cord material | Round polyester for heavyweight; flat cotton for vintage looks. |
| Cord diameter | 6 – 8 mm. |
| Cord length | 140-165 cm (55–65 in) for a standard adult hood. Rule of thumb: 1.5–2× the hood opening width, plus drape. |
| Aglets | Metal tip, sealed, or plastic; name the finish. |
| Eyelet | Type, inside diameter (≈ 7 mm), finish, compliance (nickel-free / Oeko-Tex). |
| Eyelet placement | Height from hood bottom + distance from front edge. |
| Channel | Finished width, number of topstitch rows, stitch type. |
Make it visual:
A tech pack is also a memory aid.
Include flat sketches of the hood front and side with the panel seams and channel marked.
A cross-section diagram of the channel and eyelet so the casing width is unmistakable, and reference photos from your own approved sample.
Attach the QC checklist from Chapter 7 so inspection criteria live with the build spec.
Your one-page hood spec checklist:
- Layer (single/double) + lining fabric name.
- Panel count + crown panel width.
- Main and lining fabric + GSM.
- Interfacing type, weight, placement.
- Cord material, diameter, and length.
- Aglet / cord-end type.
- Eyelet type, inside diameter, finish, compliance.
- Eyelet placement (height + edge distance).
- Channel finished width + topstitch rows.
- Neckline finish (tape / binding / facing) + width.
- Topstitch type, length, and thread color.
- Collar relationship + link to collar spec.
- Flat sketches + channel cross-section.
- Reference photos from approved sample.
- Hood QC checklist attached.
- Seam allowances + seam types.
Spec the hood this completely, and you remove the guesswork.
The structured hood you built once becomes the structured hood you build every time.
For the wider document, see our guide to building a hoodie tech pack.
Reference: Fabric
How does your fabric behave in the hood?
The same construction behaves differently depending on what you cut it in.
Before you spec a structured hood, know how your fabric carries shape.
| Fabric | Standing power | What it needs |
|---|---|---|
| French terry | Low, soft, and drapey, very little on its own | Double-layering is essential. Trim looped-back bulk at stacked seams. Test structure on a washed sample. |
| Loopback | Low behaves much like Terry | Double-layer. A clean inner lining hides shedding loops and improves the hand against the head. |
| Brushed-back fleece | High real loft and weight carry shape | Still better double. Never iron hot; it melts. Grade seams: heavy fleece stacks thick at the neckline. |
The rule across all of them: the lighter and softer the fabric, the more it leans on the double-layer build and targeted interfacing to hold its shape.
A 400 gsm fleece hood holds shape more easily than a 280 gsm one; see our GSM guide and French terry vs. fleece comparison.
Reference: Diagnosis
Common hood faults and their fixes:
Even a good line produces faults.
The value is in diagnosing them fast and tracing each one back to its cause.
Most hood returns trace to one of these eight and every one is preventable at the construction stage.
01
The hood is floppy:
Cause: Single-layer build, fabric too light, or no interfacing where it counts.
Fix: Move to double-layer (Ch. 1) and add targeted interfacing at the collar seam and front edge (Ch. 6). Confirm with a wash test; floppiness often appears only after the first cycle.
02
The hood points at the back:
Cause: A 2-panel hood, which is essentially flat and pinches to a point.
Fix: Switch to a 3-panel hood with a crown strip (Ch. 2).
03
The center front is crooked:
Cause: The hood was set to the neckline without matching center-front points.
Fix: Unpick, trim the longer side at the body neck edge, and re-set to the notches (Ch. 5). Catch it at the symmetry check before it ships (Ch. 7).
04
The eyelets tear out:
Cause: No reinforcement behind the eyelet, or a hole cut too wide.
Fix: Back every eyelet with heavyweight fusible and snip an “X,” not a circle (Ch. 4).
05
The cord will not slide:
Cause: Channel too narrow, uneven topstitching narrowing the tunnel, or an eyelet too small.
Fix: Size the channel to the cord and keep topstitching parallel (Ch. 3); match eyelet inside diameter to the cord with clearance (Ch. 4).
06
The channel looks wavy:
Cause: Stitching stretchy knit without a stable line or skipping the press step.
Fix: Press hard before topstitching, lengthen the stitch, use an edge guide (Ch. 3).
07
The neckline stretches out:
Cause: An unreinforced neckline carrying the weight of the hood.
Fix: Stabilize the joint with twill tape (Ch. 5). It reinforces as it finishes.
08
It goes limp after washing:
Cause: Fabric relaxation in a light single layer, or interfacing that peeled.
Fix: Double-layer for lasting loft (Ch. 1), correctly fused interfacing (Ch. 6), and a wash test on every new style (Ch. 7).
Hood construction FAQ
Why is my hoodie's hood floppy?
Almost always a structural problem.
The most common causes are a single-layer build, a fabric too light to hold shape, or missing interfacing at the eyelets and collar seam.
The fix is a double-layer (self-lined) hood, with heavyweight fusible interfacing behind the eyelets and a small fused piece at the collar seam.
Confirm the fix with a wash test; floppiness often only appears after the first cycle.
What is a double-layer hood?
A double-layer hood is self-lined: two layers of fabric sewn and treated as a single unit.
The outer layer faces the world, the inner layer faces the head, and the raw edges are trapped between them.
The two layers brace each other, which is what lets the hood stand up rather than collapse.
It also hides every seam and holds loft far better through washing than a single layer.
Is a 2-panel or 3-panel hood better?
A 3-panel hood is better for shape.
A 2-panel hood is two mirrored pieces joined over the crown, which makes it essentially flat; it pinches to a point at the back and does not follow the round of the head.
A 3-panel hood adds a crown strip (typically around 10 cm finished) between the side panels, giving depth across the top of the head and a fuller, more considered silhouette.
What size eyelet do I need for a hoodie drawcord?
An inside diameter of around 7 mm is the common choice for a standard hoodie drawcord; a 1/4 inch (roughly 6 mm) “large” eyelet also works well with thicker cords.
Size by the inside diameter of the hole the cord passes through, not the outer flange width.
Match it to your cord with a little clearance so the cord passes without scraping the ring.
How long should a hoodie drawcord be?
A standard adult hoodie cord runs roughly 140-165 cm (55-65 inches).
A working rule is 1.5 to 2 times the width of the hood opening, plus an allowance for how far you want the cord to drape when tied.
Too short and it stops functioning; too long and it becomes both an aesthetic and a safety problem.
How do I stop hood eyelets from tearing out?
Back the fabric with heavyweight fusible interfacing before you set the eyelet.
If you do not have heavyweight interfacing, fuse two or three lighter layers to reach the same firmness.
Also, snip a small “X” in the fabric rather than cutting a wide circle; a tight opening grips the eyelet teeth and resists tearing under cord tension.
Why use twill tape on the hood neckline?
Twill tape (around 12 mm) edge-stitched over the hood-to-neckline join does three jobs in one pass:
It covers the raw seam for a clean inside finish, it reinforces the neckline so it does not stretch out under the hood’s weight, and it anchors a hanging loop at the center back.
It is one of the cheapest steps that most visibly raises perceived quality.
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.
On the floor · Sialkot