indoor school slippers
Refers to soft, lightweight slippers worn inside schools, often with a ballet-flat design. Originally from a brand name, now a generic term for this type of school footwear.
from English ballet shoes
See also: 上履き
I change into my indoor school slippers before entering the classroom.
I got new indoor school slippers bought for me.
Variant with interpunct; less common in everyday writing.
From English 'ballet shoes', originally a brand name. Now used generically for soft indoor school slippers.