| 摘要 |
PROBLEM TO BE SOLVED: To provide a backpack having a structure in which space is given between a shoulder part of the backpack and the back to make it air-permeable and which allows easy attachment/detachment.SOLUTION: A net 2 is arranged at a part contacting the back, and a steel wire 1 is attached so that space can be held between the back and a back part of the backpack. The steel wire 1 prevents a back face part from sticking firmly to the body and it gives air permeability. The copper wire 1 keeps the shape of the backpack. The structure is made simple, and the accessory is attachable/detachable so that the backpack can be used as a usual backpack when this function is not necessary. |
