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Komon Lab

For English-speaking kimono sewers

Custom kimono patterns, sized for you.

Free, printable PDF patterns generated from your measurements. Built for traditional and modern fabric widths. No sign-up, no email wall, no upsell.

A folded length of indigo-dyed cotton beside a measuring tape and brass shears.

Why this exists

The kimono sewing community deserves better tools in English.

Most English-language kimono patterns are sized to a single 'standard.' But you're not a standard — and modern Western fabric isn't 38 cm wide. This site fixes both.

01 / fit

Built around your body, not a size chart.

The tool takes seven measurements and recomputes every pattern piece — body panel, sleeve, collar, overlap — using the proportional rules of traditional wasai. Nothing is graded from a fictional Misses 12.

02 / fabric

Works with the fabric you can actually buy.

Traditional tan-mono bolts are 35–38 cm wide. Most fabric in a Western store is 110 cm or wider. The cut chart reorients pieces, splits where it has to, and tells you exactly how much yardage to buy.

03 / honest

Free, with no wall in front of it.

No sign-up. No email capture. No "premium tier." Your measurements never leave your browser — the PDF is generated on your device. If this site ever runs ads, they will be small, unobtrusive, and labelled.

How it works

Three steps, about ten minutes.

  1. 1

    Measure

    Take seven measurements with a soft tape — height, bust, waist, hip, shoulder, sleeve, and desired hem length. Our measuring guide walks through each one.

  2. 2

    Customize

    Enter your measurements, pick your fabric width and seam allowance, choose a garment style. The tool draws each piece and runs sanity checks on the proportions.

  3. 3

    Download PDF

    Get a print-ready PDF (A4 or US Letter) with the pattern pieces at true size, a cut chart, and step-by-step sewing instructions written for first-time kimono sewers.

What you get

A pattern set you can actually sew from.

Not a sketch, not a one-page diagram. A full booklet, ready to print on a home printer.

  • Measurement summary. Every input plus the derived dimensions, so you can sanity-check before you cut.
  • Pattern pieces at true size. Tiled across A4 or US Letter with alignment marks. Each piece is labelled in English and (where it helps) Japanese.
  • Cut chart for your fabric. Different layout for 38 cm bolts vs. 110 cm modern goods. Yardage estimate included.
  • Sewing instructions. Plain-language, sequenced, with notes on where traditional wasai technique diverges from Western dressmaking.

Sample PDF preview

p.1 Summary

p.2 Body

p.3 Sleeve

p.4 Collar

p.5 Cut chart

p.6 Instructions

Mock preview. Actual PDF rendered live in your browser.

Who this is for

If you've ever felt like kimono sewing resources weren't quite written for you — they probably weren't.

A first-time kimono sewer

You sew, but you've never made a kimono. The construction is so different from Western patterns that the existing guides feel like they're missing five steps. This site fills them in.

A costume or theatre maker

You need a kimono in three weeks, out of whatever 145 cm fabric you can source, on a non-standard body. You want a pattern that respects the structure but bends on width.

A heritage learner

You grew up around kimono — or wish you had — and want to sew one yourself, in English, without a YouTube playlist that assumes you already know kuke from hira-mitsu.

From the guides

Background reading, written deeply.

All guides →

context

Reading vintage Japanese sewing patterns

An English-language sewer's field guide to pre-war and Showa-era wasai manuals: the conventions, the abbreviations, the units, and the layouts that make a sixty-year-old kimono book legible — and the few pitfalls that quietly mislead beginners.

10 min read

technique

Children's kimono and the age fold

How wasai builds a growing body into the garment itself: the shoulder tuck (kataage), the waist tuck (koshiage), and why a children's kimono is sewn with deliberate excess that gets let out as the child grows.

11 min read

technique

Cleaning and storing a hand-sewn kimono

Araihari, marurai, spot-cleaning, tatōshi paper, naphthalene, humidity, frequency. What you can reasonably do at home, what should go to a professional, and the few mistakes that will quietly ruin a kimono in storage.

11 min read

technique

Hakama trouser construction

A hakama is not a skirt and it is not trousers. It is a pleated wrap garment with two structural variants — umanori (divided, horse-riding) and andon (tube, undivided) — each with its own pleat grammar and its own ceremonial weight. Here is how a hakama is built and what each pleat means.

12 min read

technique

Hand stitching vs machine sewing a kimono

A clear-eyed comparison of the trade-offs between hand and machine sewing a kimono — which seams benefit from kuke or hira-mitsu, which can be machined without compromise, and the hybrid approach most contemporary home sewers actually use.

11 min read

technique

Haori jacket construction

The haori is a short overcoat with a kimono cut and three crucial differences: it opens at the front, it does not wrap, and the collar folds outward instead of crossing. Here is how a haori is built, why modern fashion adopted it, and how to sew one over an existing kimono pattern.

11 min read

A note on this project

Komon Lab is the work of one person, built in the open. No VC, no growth hacks, no email lists. Just patterns that work.

If a pattern fails for your body, I want to know. If a guide gets a fact wrong, I want to fix it. The whole point is that the tool gets better every time it meets a real sewer.