The randoseru is traditionally used as a school bag in Japan.
A randoseru is a structured satchel associated especially with Japanese elementary-school pupils. It is designed to carry textbooks, notebooks, stationery, and other classroom materials while resting securely on the child’s back.
The word appears in Japanese school-bag usage and is connected to the Dutch word ransel, meaning a backpack or knapsack. The design is typically firm and rectangular, with a flap and shoulder straps. Many children receive one before entering elementary school, making it closely linked with the start of formal schooling.
The randoseru should not be confused with every Japanese school uniform or with a generic backpack. Japanese students also use other bags for clubs, sports, and secondary school. The distinctive term refers specifically to the traditional structured school satchel.