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The Keystone Jacket – Sewing Pattern
Sewing pattern · Roughcut

The Keystone Jacket

A true denim classic — welt pockets, structured seams, and a pointed collar. Modular front options give you the choice of two distinct front panel builds in one pattern.

Skill 3 of 5 · zips, waistbands and collars — a few garments in

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Printed patterns go out every Monday. Order within to make this week's run.
Instant download Full build on film Lifetime updates Any home machine
Update coming — read this first

What you're buying today is the earlier version of this pattern, graded up to XL. A new one is on the way: every denim jacket route in a single modular pattern, layered sizing, a full handbook, fabric recommendations, and grading up to 3XL.

Buy this now and you own it — but if you want the bigger sizes or the modular version, it's worth waiting.

What you'll come away knowing

Six things you'll keep

Welt pocket construction
Structured seam work
Pointed collar construction
Modular front panel choice
Heavyweight denim handling
Clean topstitching
The build, start to finish

Watch it made before you cut

►Keystone Jacket — Community TutorialCommunity build
►Keystone Jacket — Community Tutorial Watch on YouTube ↗

Community builds are filmed by other makers, not by me — same pattern, their words.

Fabric draft — check me

What to make it in

Denim (12–16 oz) — the welt pockets want the body
Selvedge denim, 13–16 oz
Cotton duck or workwear canvas
Corduroy (mid-wale) for a softer take on the same shape

Weights and sourcing are in the materials list that comes with the pattern.

The files

What arrives

FormatsA0, A4 and US Letter
SizesNot layered yet — every size prints together
Seam a/w¼″ already included — cut on the line
Also insidePanel labels, notches, cutting layout, materials list
LayeringLayered sizing is being added pattern by pattern — Gio and I are working through them in priority order. Every new release has it from the start.

Never printed a pattern before? The print & tiling guide covers it in about twenty minutes.

Before you cut

Measure the 2″ test square first. It's the only thing that goes wrong, and the only thing you can't undo. Print at 100%, from a laptop rather than a phone.

Buy a little more fabric than you need, and run the tricky part once in something cheap before you touch the good stuff.

Never made a pattern before? Start with the free ones — they're the same system, no risk.

Stuck? Message me.

Not a help desk — me, on WhatsApp, usually the same day. Missing files, printing trouble, or a seam that isn't behaving.

Message on WhatsApp →
£15.95Digital Dowload