| 摘要 |
The present invention relates to a back pack which comprises a body (100) with a storage space, and a cover (160) with one end fixed on the upper end of the body (100) to cover an entrance (102) of the storage space. The back pack also comprises a coupling means fixing while the cover covers the entrance (102) with a fixing means fixing the cover (160) while the cover is folded. The cover is fixed by being folded clockwise or counterclockwise as necessary, thereby forming a roll-top form to use the back pack in various forms. |
