| 摘要 |
PURPOSE: A convenient backpack for students capable of attaching a slippers keeping bag and a document bag is provided to enable users to check the length of straps for improving the wearing comfort of the backpack. CONSTITUTION: A convenient backpack for students includes a bag, a length control unit, and shoulder supporters(53) formed with Styrofoam or memory foam, attached to the upper side of straps. The length control unit includes scale marks for displaying the length of the straps. A back plate inside the backpack is produced with a plastic material. A document storage case(20) is formed inside the backpack using leather or polyester. A slippers keeping bag(30) is attached to the side surface of the backpack.
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