Assertion: sleeping bag's feature | /r/HasProperty | designed footbox
Facets:
value: anatomically
type: MANNER
Source sentences:
text: Other great features of this sleeping bag are an anatomically designed footbox that has twice the insulation as the rest of the bag, a sewn-in quilted chest collar that helps to prevent air drafts, a reversible double-pull slider that allows top or bottom ventilation and a draft flap and hood that help with heat retention.