From the upper grades of elementary school to the elderly, an expandable Boston bag that can be used for multiple purposes
I wanted to make it an item that could be used for any age or gender, so I put it together with a basic sports-style design.
Since it is an item for carrying a lot of luggage, it uses only functions that are specialized for ease of storage, capacity, and portability.
Please use it as a school trip, club activity, school teaching materials, or work tool container.