| 摘要 |
A sleeping bag (11) design for providing adjustability of the inner volume and outer exposed surface area of the bag comprises sheathed drawcords (14), preferably elastic, attached only to the top or upper portion of the bag and secured by cord locks (16) A user of the bag can tighten the drawcords during cold weather, thereby providing a warmer bag by reducing the inner volume and the exposed outer surface area of the bag without reducing the thermal protection provided to the lower portion of the bag by an underlying flat insulated pad, as would be the case with drawcords fully encircling the bag. During warmer weather, the user can relax the drawcord adjustment, thereby providing the user with more freedom of movement. Thus a considerably more versatile sleeping bag is provided-that can be adjusted to provide more warmth during cold weather or more freedom of movement during warmer weather.
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