Sageo: Types, Functions, and Carrying Traditions—Materials, Colors, and School-Specific Tying Methods

What is Sageo — A Decorative Cord Developed as a Carrying Device for Japanese Swords

The "sageo" is a braided cord or leather cord attached to the saya (sheath) of a Japanese sword, and is used by threading it through a protrusion-shaped part called the "kurikata" positioned at the middle of the sheath. The name derives from "a cord that hangs below," referring to how the excess cord hangs down from the lower part of the sheath when the sword is worn at the waist.

The sageo is not merely a decorative item but served important functional roles in carrying, securing, and drawing the sword. Furthermore, the material, color, and tying method were precisely regulated according to the warrior's school, social status, and whether the occasion was a formal ceremony or battlefield, and it has long been highly valued for its aesthetic merit as part of the koshirae (sword fittings).

Specific use cases include situations where the sword is removed from the waist and placed indoors, or when the sheath is leaned against a wall in an interior space. In these situations, the sageo was wound around the sheath to lightly secure the koiguchi (mouth of the sheath), rendering unintended drawing impossible. This practice is said to have also carried the meaning of a form of etiquette demonstrating peaceful intent toward the other party.

Materials and Types of Sageo

The materials of sageo are broadly classified into two types: silk braided cord (kumihimo) and leather.

Silk braided cord (kumihimo) is considered the most formal material. Braided cord made by craftsmen using pure silk requires uniform thickness, luster, and color quality, and its production demands advanced technique. During the Edo period, kumihimo artisans from Kyoto supplied high-quality sageo, meeting the demands of the warrior class. Depending on the braiding method, there are various types such as "marugumi," "hiradaoren," "kakugumi," and "edo-uchi," and each was used differently depending on the circumstances and school to which it was applied.

Leather (kawa) sageo, made by thinly cutting deer hide or cowhide, was considered durable and practical. It was used with battlefield applications and rugged sword fittings, possessing understated yet functional appeal.

Hemp (asa) sageo was a relatively inexpensive material readily available and was used on the swords of common samurai, foot soldiers, and other ranks for daily use.

These materials create differences not only in outward formality but also in actual feel of use. Silk braided cord is supple and easy to tie, resulting in beautiful finishing, but is vulnerable to moisture and friction, and with extended use tends to fade and develop raised fibers. Leather is resistant to wear and resists warping, but tends to harden with age and requires regular maintenance. Hemp has a dry texture that is easy to handle and is said to be suited for daily use such as practice.

The Color and Meaning of Sageo

The color of sageo functioned as an important symbol indicating the social status, school, and formality of the occasion of the warrior. The use of color differs by school and era, but several representative conventions have been transmitted.

Navy (kon) color was the most common color and was widely used in the daily sword wearing of the warrior class. The subdued hue was said to represent the pride of the warrior. Brown (cha) color and black (kuro) were also used in daily sword wearing and were valued as understated yet dignified combinations. White (shiro) was used in formal dress and ceremonial fittings, treated as a color symbolizing cleanliness and purity. Red (aka) was sometimes used in formal dress of warriors and on occasions of celebration, and in some schools was used as a way to identify disciples by unique colors.

However, it should be noted that these color conventions varied by era, region, and school, and were not uniformly established across warrior society as a whole. When using a particular color, it is advisable to confirm the customs of the school or family to which one belongs.

Tying Methods by School Tradition

The method of tying the sageo is regulated in various ways by school, and it was even said that "if you know a kenjutsu school, you can tell it by the way the sageo is tied."

The handling of sageo in iaido is given special importance. In iaido drawing technique, the key point is how quickly the sword can be drawn from the sheath, and specific tying methods are established so that the sageo does not impede the draw. In major iaido schools (Muso Shinden-ryu, Musou Jikiden Eishin-ryu, Tamiya-ryu, etc.), the method of handling the sageo during practice is specified in detail and is one of the matters of transmission to disciples.

The use of sageo in martial art schools includes techniques that employ the sageo as a weapon. A technique called "sageo-jutsu" exists in which long sageo (approximately 3 to 4 shaku in length) is used in combination with the sword, and applied techniques existed for entangling an opponent, disarming weapons, and restraining in cases of emergency.

In practice, if the tying of the sageo is improper, the sageo hanging from the sheath during drawing and resheathing motions may become tangled around the feet or the hand holding the sword, hindering the motion. Moreover, in seated technique (suwariwaza) that involves drawing from a formal sitting position, it is important to carefully arrange the sageo beforehand so that it does not become compressed under the body or stepped upon on the tatami mat. For this reason, the tying of the sageo is not merely a formality but also has the aspect of a practical technique supporting safe practice.

Maintenance and Storage of Sageo

Since sageo has an aspect of being a consumable item that is retied to the sheath during daily use, proper maintenance and storage are the key to longevity.

• After use, it is best to prevent warping by unfastening it to the extent possible before storage rather than leaving it with kinking for extended periods.
• Silk sageo is prone to discoloration and fading if exposed to direct sunlight, so when storing it is advisable to choose a location shielded from light.
• Storing in a place with high humidity can lead to mold and insect damage, so maintaining a dry environment is fundamental.
• Leather sageo tends to harden with repeated use, requiring maintenance appropriate to its condition.

These are basic considerations that do not require special tools, but the accumulation of daily maintenance leads to the sageo retaining its appearance and function over a long period.

Sageo Selection and Cultural Significance in the Modern Era

For modern Japanese sword enthusiasts, iaido practitioners, and sword collectors, the selection of sageo is an important element that determines the aesthetic completeness of the koshirae. Selecting sageo appropriate to the era, school, and purpose is essential in establishing the overall "status" of the sword.

High-quality braided cord sageo continues to be made by traditional kumihimo artisans in the modern era, and specialist kumihimo shops remain active primarily in Kyoto and Tokyo. Both pure silk and synthetic fiber materials are used, with prices ranging widely from several thousand yen to tens of thousands of yen.

When selecting sageo, in addition to overall unity through color coordination with the sheath and wrapped handle, the intended use is also an important consideration. When the primary purpose is appreciation in an alcove display, emphasis tends to be placed on the beauty and luster of the material, while when used daily in iaido practice, some prioritize ease of tying and durability. Additionally, if a particular school or dojo specifies or recommends a color or tying method, it is reassuring to confirm this with an instructor before purchase.

Sageo is an easily overlooked detail within Japanese sword culture, but the combination of its material, color, and tying method becomes eloquent evidence that speaks to the cultural context of the entire sword. When appreciating and studying the Japanese sword not merely as a blade but as a comprehensive cultural product, we would ask that you also pay attention to the sageo.