What kind of material is 'koshiura' mentioned in the description?
When reading the product descriptions, some clothes are said not to use interfacing, while others are said to use koshiura at the waist. Because it is an unfamiliar word, it is difficult to grasp what it refers to.
It is a band-shaped subsidiary material serving as both interfacing and lining padded inside the waistband of trousers or skirts, and one product finished the waist belt with this[1].
The silhouette of a garment is not determined solely by the outer fabric. What is added inside in a layer—or what is not added—works together with it.
Interfacing generally refers to reinforcing materials padded on the inside of the outer fabric to hold the shape, and koshiura is a subsidiary material serving as both interfacing and lining that is padded inside the waistband of trousers or skirts to hold the waist shape while wrapping and finishing the inner seam allowances and stitch lines. It is mainly used to stably maintain the waistline and provide a neat finish in garments with waistbands, such as slacks.
Pipe Dream Print Shirt has no interfacing, allowing the garment to flow lightly and naturally[2], and Flared Midi Skirt finished the waist belt with obi koshiura[3].
hmmm, this single line noting the inner material can be read as a clue that allows one to gauge how the unseen interior of the garment was finished. If koshiura wraps around the waist, it signifies an intention to ensure completeness by firmly keeping the waist shape while neatly encasing areas that do not show on the outside.
This product is currently no longer sold.