Graphene Lined Winter Sleeping Bag with Hood

The thermal efficiency stems from the integrated graphene lining, which offers superior conductivity to minimize heat loss in extreme cold. A built-in drawstring hood eliminates drafts at the neck and head, while the independent bottom zipper allows for precise foot ventilation to prevent overheating. Constructed with a water-resistant nylon/polyester outer shell, this bag withstands abrasive ground conditions. It packs down to 12x14 inches in the included compression sack, weighing 5 lbs for manageable transport. Unzipping the unit fully converts the sleeping bag into a double-sized quilt for versatile utility in base camps or vehicles.