noun
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
このジャケットはジャストサイズで、とても着やすい。
This jacket is just the right size and very comfortable to wear.
ジャストサイズの靴が見つかって嬉しい。
I'm happy I found shoes that are the perfect size.