Down sleeping bags
Fluff
— insulation based on natural fluff (duck or goose). Its main advantage is excellent thermal insulation, due to which this material is used primarily in premium winter sleeping bags. The main disadvantage of down is its sensitivity to moisture: it gets wet easily, dries for a long time, and when wet, loses its insulating properties almost completely. However, most manufacturers supply down sleeping bags with a water-repellent coating and/or special covers.Show