noun
detachable kimono neckpiece; han-eri
A half-collar sewn or attached inside the collar of a kimono or juban, often white or decorative, that can be removed for washing or changing style.
着物を着るときは、半衿をきれいに付けるのが大事です。
When wearing a kimono, it's important to attach the han-eri neatly.
白い半衿は清潔感があって、フォーマルな場に向いています。
A white han-eri looks clean and is suitable for formal occasions.
衿 (えり) is the general collar of a kimono, while 半衿 is specifically the detachable half-collar piece.
長襦袢 is the under-kimono to which the 半衿 is often attached.
Compound of 半 (はん, 'half') and 衿 (えり, 'collar'), referring to the half-length collar piece used in traditional Japanese clothing.