just the right size; perfect size
Wasei-eigo (Japanese-made English) used to describe clothing, shoes, or other items that fit perfectly. Often used in fashion and retail contexts.
wasei-eigo (Japanese-coined English), from just size
See also: ジャスト
This jacket is just the right size and very comfortable to wear.
I'm happy I found shoes that are the perfect size.
Variant with a middle dot; less common but seen in some contexts.
Wasei-eigo from English 'just' and 'size'. It is wasei.