noun, noun or participle which takes 'suru'
shoulder tuck; tuck at the shoulder
A tuck sewn into the shoulder of a child's garment to adjust length, allowing it to be let down as the child grows. Commonly used in kimono and children's clothing.
See also: 肩揚げを下ろす (かたあげをおろす) · 肩揚げが取れる (かたあげがとれる)
子どもの着物の肩上げを下ろす時期が来た。
It's time to let down the shoulder tucks on the child's kimono.
This dress has shoulder tucks, so she can wear it next year too.