The Kimono Jacket Revealed: A Deep Dive into Sewing the Men’s Haori

By Alex Newton Nov 24, 2025

👘 Introduction: The Elegance of the Unlined Outerwear

Welcome to the House of Kimono blog, where we connect the timeless art of Japanese pattern-making with your next sewing project.

Today, we are focusing on one of the most stylish and fascinating garments in the traditional Japanese wardrobe: the Haori. Often described as a kimono jacket, the Haori is fundamentally different from the kimono or yukata it accompanies. It is a piece designed to be worn open, offering an extra layer of warmth, style, and formality, all while adhering to the ingenious zero-waste principles of Japanese tailoring.

If you are following our Men's Haori Jacket Sewing Tutorial (embedded below), this article serves as your indispensable reference. We will break down the construction philosophy, introduce the critical Japanese terminology—like the Kata Yama and Machi—and explain the expert tricks for achieving a perfect drape, from managing fabric bulk to mastering the notoriously long collar seam.

Ready to transform your fabric into a classic piece of Japanese elegance? Grab your pattern (available in the video description) and let’s begin.

📜 The Haori in History: More Than Just a Jacket

To sew a Haori is to participate in a rich history. Originating in the Edo period (1603–1868), the Haori was initially exclusive to men of higher classes, often worn by samurai over their kimono for warmth. For a long time, it was banned for women, which is perhaps why, when the ban was lifted in the Meiji period (1868–1912), the Haori quickly became an essential garment for women’s fashion and a symbol of their changing status.

The key functional difference is this: a kimono is wrapped and tied with an Obi (sash); a Haori is always worn open [39:07]. It is designed to sit loose and flat, never to be pulled closed.

Our pattern honors this legacy, focusing on a fit that is structured yet flowing, achieving that ideal, loose drape [12:18] that should simply fall straight down the wearer’s body [14:13]. The Haori is a canvas for subtle beauty, from the lining (if used) to the chosen Haori Himo (ties).

✂️ The Zero-Waste Strategy: Cutting and Layout

The first lesson in sewing a traditional Japanese garment is reverence for the cloth. The entire pattern is based on the tanmono, the traditional narrow bolt of fabric. While modern fabrics are often wider (like the 150 cm wide blend used in the video [00:16]), the layout maintains the fundamental zero-waste logic, organizing the entire jacket from a few rectangular strips.

Preserving the Pattern: Avoiding the Center Back Seam

In traditional kimono construction, the body piece is cut into two strips which are later sewn together to create the center back seam. However, as demonstrated in the tutorial, a brilliant approach for highly patterned fabric is to omit the center back seam altogether [01:58].

By leaving the two back body panels attached (provided your fabric is wide enough), you achieve two critical things:

Reduced Construction Time: You eliminate a long seam that would otherwise require sewing and finishing [01:52].
Perfect Pattern Match: If your fabric has a motif—like the prominent diamonds in the video—leaving it uncut ensures that the pattern runs unbroken and perfectly centered down the back [02:05]. This creates a stunning visual impact that can be lost in cutting and rejoining.

The Mountain Markers: Katayama and Sodeyama

Before you cut the front opening, you must prepare your fabric with critical alignment marks. These are fundamental to Japanese sewing:

Katayama (肩山 - Shoulder Mountain): The exact halfway point of the main body piece, forming the shoulder crest [02:24].
Sodeyama (袖山 - Sleeve Mountain): The exact halfway point of the sleeve piece.

These aren't just guide marks; they are the foundation of the garment's structure. You press hard creases into the fabric at these points [03:04]. They are the reference point for:

Lining up all pieces during the flat construction process [03:11].
Cutting the back neck curve (the "collar’s path") accurately from the center point [03:48].
Folding and storing the finished garment, ensuring its shape is maintained.

📐 The Secret of Fit: Incorporating the Machi Side Panel

Perhaps the most unique feature of the Haori (and the kimono) that sets it apart from Western jackets is the inclusion of the side panel, or Machi (マチ) [11:32].

Why the Machi is Essential

The Machi is a narrow, generally triangular piece of fabric inserted into the side seams of the Haori (or kimono) from the hem up toward the underarm. It serves two crucial, non-intuitive purposes:

Accommodating the Obi (Female Garments): In traditional women's clothing, the Obi (sash) is tied in a large knot at the back. The Machi provides the necessary width and ease to allow the Haori to drape smoothly over this knot without being pulled or bunching [12:34].
Ensuring Flawless Drape (Men’s Garments): Even without a large Obi knot, the Machi is vital for the men's Haori. It ensures the jacket remains loose and avoids clinging to the body, providing extra room around the waist, glutes, and stomach [13:22]. This allows the back of the Haori to fall straight down from the shoulder, gliding effortlessly over the body’s curvature [14:07]. If you are a very slim individual, you may be able to omit the Machi entirely [11:37, 12:54].

Tapering for the Perfect Custom Fit

The tutorial includes an advanced technique for the Machi: tapering [16:14].

By cutting the Machi into a specific, slightly triangular shape, you are essentially customizing the lower fit of the jacket. The pattern suggests an initial taper, but you can adjust this to your body type: widen the Machi at the hem to accommodate larger glutes or reduce it if you need less ease. The careful marking of the center point (the 5 cm mark) and the subsequent diagonal sewing ensures a clean, professional finish [16:54].

🧵 Mastering Advanced Kimono Sewing Challenges

The seemingly simple lines of a kimono jacket hide a few key construction challenges that require specific, traditional techniques to overcome.

1. The Underarm Bulk Dilemma

In kimono construction, several major straight seams meet at 90-degree angles in the underarm junction (where the body, sleeve, and Machi meet). This can lead to excessive bulk [24:03]. The traditional solution, beautifully demonstrated in the video, is to manage the seams and leave tiny gaps:

Gap Strategy: When sewing the body/ Machi to the back piece, you stop the stitching about half an inch (1 cm) before you reach the top of the Machi [26:33]. This creates a small gap, relieving the tension.
Separating the Seams: When the sleeve is attached and the final underarm seam is closed, you ensure a small quarter-inch (5 mm) gap is left from the sleeve seam and from the Machi seam. This small, unstitched area allows the fabric to move and settle without bulk [26:51].
Pressing Strategy: Once the Machi is in place, you press the seams open and in opposite directions to avoid accumulating fabric in one spot [27:34].

2. The Long Collar Challenge

Attaching the Haori collar is intimidating—it’s an extremely long seam, often six feet or more, that must attach perfectly around a curved back neck [33:46]. The risk is that the feeding mechanism of your sewing machine causes the fabric to "walk," resulting in a collar that is uneven or mismatched when it reaches the hem.

The expert solution is to treat the collar as two separate seams [34:07]:

Pin and Sew One Side: Start at the Katayama (center back) and pin your way down to the hem on one side, then sew it.
Pin and Sew the Other Side: Return to the Katayama and pin/sew the other side down to the opposite hem.

This approach ensures any slight movement is contained on one side, dramatically increasing the chances of a perfectly aligned finish.

3. Raw Edge Management: The Classic Alternative

For those without an overlocker, the video highlights the quintessential Japanese method for managing long, straight raw edges: The Double Turn [19:20]. This technique involves folding the raw edge back by a quarter inch, then folding it again by half an inch, effectively encasing all the fraying fibers. This clean, flat finish is then stitched down, making it perfect for the side seams and the edges of the Machi.

🌟 The Finishing Touch: Himo and the Hem Trick

The beauty of the Haori is often in its details, particularly the Haori Himo (ties). Traditionally, Haori were fastened using ornate, often tasselled ties that were looped onto small hooks or threads sewn onto the inside front lapels [09:45].

Our pattern includes fabric for self-ties [10:04], which are secured at a specific point—typically 20 inches (50 cm) up from the hem [32:26]. This allows the wearer to tie the Haori closed immediately. Note that these ties are inserted so they initially point inward toward the garment [33:14], allowing them to be tucked away if not used, or to be pulled out and tied across the front as needed.

Ensuring a Flush Hem

Finally, the long collar must meet the hemline perfectly. Because some fabrics (especially blends) may stretch or shrink during the pressing and sewing of such a long seam, the tutorial offers one last, crucial trick: Stop the collar seam about 3 inches (8 cm) before the hem [35:55].

This leaves a clean, unfinished section. You then press and fold the remaining collar fabric to meet the perfectly lined up hemline, ensuring that any excess fabric is controlled and you achieve a final, crisp, straight corner [37:11]—a hallmark of quality tailoring.

💖 Conclusion: A Woven Legacy

The Men's Haori Jacket is more than just a beautiful project; it is a wearable lesson in minimalist, sophisticated design. By embracing the traditional concepts of Katayama, Machi, and flat construction, you are creating a garment that truly honors its historical roots.

Remember: the finished Haori is meant to be worn loose and open, celebrating the fabric, the clean lines, and the layers underneath.

Ready to start your own Haori? Download the pattern and use the video tutorial below to guide you through every satisfying step!