randoseru; Japanese elementary school backpack
A firm-sided leather or synthetic-leather backpack traditionally used by elementary school children in Japan. The word is often left as randoseru in English because the item is culturally specific.
from Dutch ransel
The child goes to school wearing a red randoseru.
We bought a randoseru as a school-entrance gift.
The elementary school children walk to school carrying their randoseru on their backs.
We bought a new randoseru before she started school.