Gear Talk / Re: sleeping bag
« on: August 26, 2011, 02:11:45 pm »Down:
Pros: Compresses smaller and is a little lighter for the same weight/temperature range.
Cons: Requires special cleaning, does not insulate well when wet (if at all).
Synthetics:
Pro: Easier to care for, doesn't lose as much of it's ability to insulate when wet.
Cons: Slightly heavier than down for the same weight/temperature range, doesn't compress as small as similar down bag.
Ask yourself:
"Are you camping outside or do you intend to use shelter (tent, bivouac, etc.)?"
"How important is weight and how much room do you have to pack it?"
"Will the bag require frequent cleaning (either from you or outside elements like dirt)?"
Another factor to consider is what kind of temperature range will you be encountering? A low temperature bag will be uncomfortable in warmer weather, but a warm weather bag could be dangerous if the temperature should drop too far below it's range. Some bags are designed so they can be used in different temperature ranges. Either they have more insulation on one side than the other or the down can be shifted from one side to the other to accommodate the expected temperatures. These are very useful if you expect a large change during your tour, either because of it's length (change of season) or terrain (elevation, climate zones and so on).
I hope this helps