| 摘要 |
PURPOSE: A combination knapsack and sleeping bag with buoyancy is provided, which has a buoyant material inside and contains a sleeping bag. CONSTITUTION: The combination knapsack and sleeping bag with buoyancy comprises; a front surface(30) pressed against users back, a pair of lateral sides(20) connected to both sides of the front surface(30), a bottom surface(40) connected to the lower part of the front surface(30), a rear surface(42) extended from the bottom surface(40), a built-in material with cushion and buoyancy, and a sleeping bag(50) attached to the inner side of the knapsack(10). The knapsack is unfolded using slide fastener.
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