What are the major differences between Goose Down and Synthetic insulation in sleeping bags?
Down is a more expensive insulation than Synthetic. It is lighter and more compressible than Synthetic. It also has a longer lifespan if you take care of a down bag, it can easily last you 20 years. Synthetic is more affordable, and has the advantage of staying warm when it gets wet. As Down feathers collapse when they get wet, they loose loft and will not keep you as warm.
