| 摘要 |
PROBLEM TO BE SOLVED: To provide good air permeability and good cushion property and more effectively absorb moisture of sweat exhaled from the back, by attaching, at a rear topper, a ventilation material formed from mesh materials arranged on both side surfaces and a plurality of fiber materials placed between the mesh materials. SOLUTION: A ventilation material 10 that can absorbs and dries sweat exhaled from the back during usage is attached to a back pad 2 of this knapsack 1. The ventilation material 10 is formed by arranging mesh materials 11 made of natural fiber or chemical fiber on both side surfaces, and placing a plurality of fiber materials 12 formed in a thin string shape between these mesh materials 11. The ventilation material 10 keeps a cushion property and air permeability by maintaining a space between the mesh material 11 and a mesh material 11. By placing the ventilation material 10 on the back pad 2 of the knapsack 1, sweat exhaled from the back is dispersed to provide a comfortable usage feeling even when the knapsack 1 is put on for a long time.
|
