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A hanhaba obi is a relatively narrow kimono sash, commonly paired with yukata and everyday kimono such as informal komon or tsumugi. Single-layer and kobukuro constructions offer different weights and surfaces, while folds and knots change its appearance.
The name describes a width narrower than a full-width women’s obi. Toyo Kimono Culture School gives an example of about 15 cm wide and 3.2–3.6 m long. Dimensions vary with product and intended knot, so these are useful examples rather than a universal specification.
A single-layer obi differs structurally from a two-sided pouch form. The school describes everyday and yukata uses, including Hakata and wool examples; Chikuzen also presents four-sun single-layer and openwork sha versions. Hanhaba identifies neither a single textile nor an exclusively summer sash.
A kobukuro obi may be woven as a tube or made by sewing two lengths together. Materials include Hakata weave, brocade, damask, tsumugi and cotton. Different colours or patterns on its two faces can become visible through folded sections of a knot.
A men’s kaku obi is also narrow but belongs to another category; a heko obi uses soft cloth gathered and tied. A Nagoya obi may be folded narrowly around the waist while retaining a wider rear section. That does not turn it into a hanhaba obi.
Yukata, komon and tsumugi are common pairings, also listed for kobukuro obi by Hakata weaver Mori. Suitability for an occasion depends on the kimono, textile and pattern together. Width alone does not settle every question of formality.
Bunko and kai-no-kuchi are common hanhaba knots for yukata. Bunko opens into bow-like wings, while kai-no-kuchi makes a flatter shape. Their different outlines also demand attention to length and thickness, as well as colour.
Sagami’s school-supervised instructions distinguish the short end reserved at the start, te-saki, from the longer tare end after winding the obi around the body. For bunko, the tare is folded into horizontal wings, pleated at the centre and secured there by wrapping the te-saki around it. The knot is arranged at the front before being turned to the back. Folds can reveal the colour on the reverse.
Kai-no-kuchi uses a different construction in the same teaching series: fold the tare diagonally inward, pass the te-saki through the folded section and arrange the corners into a flatter overlap. Bunko thus depends on folded wings and a central wrap; kai-no-kuchi depends on a diagonal fold and a threaded end. These photographs show the retailer’s examples. End lengths and winding arrangements still vary with the obi and the method being taught.
The school also lists dance and some party uses for kobukuro obi. More elaborate stage textiles and shapes do not automatically establish a rule for ordinary formal dress. Their role belongs to a particular costume and performance setting.
Half-width obi also appear beneath women’s hakama in graduation outfits. Kimono retailer Yamato, for example, lists a “hakama-shita obi (hanhaba obi)” in its graduation-hakama set. This differs from displaying the knot at the back of a yukata: the obi is selected as part of the complete hakama outfit.
Kokugakuin professor Ogawa Naoyuki connects obi development with kosode becoming outerwear. Earlier sashes were around 10 cm wide; women’s obi later broadened, with maru obi exceeding 30 cm appearing in mid-Edo. This is a history of changing dress rather than a single invention date for the modern hanhaba obi.
Twelve sashes used by Misawa Hatsuko and held by Sendai City Museum range from about 5.5 to 13 cm wide. Their heritage description identifies them as evidence of a transition from early narrow sashes toward broader forms. They illuminate the history of width without being relabelled as today’s hanhaba category.
Ogawa describes the use of roughly 15 cm hanhaba or soft heko obi with relatively simple yukata dress. Contemporary weavers offer single-layer, kobukuro, openwork and contrasting-face versions, giving everyday wearers several ways to vary structure and appearance.
It is narrower; the school’s example is about 15 cm.
No. They can also be woven as a tube.
No. Uses also include everyday kimono, depending on textile and dress.
Bunko or kai-no-kuchi.
No. They are evidence for earlier narrow sashes and changing widths.
Bunko folds the tare into wings and wraps their pleated centre with the te-saki; kai-no-kuchi folds the tare diagonally and threads the te-saki through.
