作者: Harold P. Mintz
DOI:
关键词: Geology 、 Structural engineering 、 Canopy 、 Foot (unit) 、 Mining engineering
摘要: A sleeping bag includes a top portion; and bottom portion, with the portion including back-folded foot canopy therein configured to allow expansion when feet of user are extended in an upward direction therewithin providing room maneuverability for user. The sides comprise walls formed by back folds each extending substantially across width said opposite spaced apart from other.