Hot answers tagged insulation
Fill power doesn't measure crush resistance. It measures the inverse of density, in units of cubic centimeters per gram or cubic inches per ounce. Insulation doesn't depend on fill power. Insulation simply depends on thickness. However, a higher fill power allows you to achieve a greater thickness while carrying a given weight on your back. Fill power is ...
The primary rating that should be on the bag is the pounds of insulation. It is a somewhat imperfect measure, but a summer bag might well be 2 or 2.5 pounds. A three-season might be 4, but that would not likely be enough for actual outdoor winter camping - but OK for a semi-heated cabin space. An older full-winter bag might be six pounds or more, with ...
The primary advantage of higher fill power down is that it is warmer per ounce (or gram, if that's your thing) than down of a lower fill power. If you had two nearly identical sleeping bags: same shell material, same weight of down, but one had 850 fill power down and the other had 700, the 850 fill power would be about 3˚F warmer. More insight into this ...
Lots of ways to reduce heat loss: Wear a hat scarf and gloves as these keep the most important parts of your body warm. Wear warm knickers (even if you're a guy). You can get fleecy knickers but not fleecy pants. Also, you can huddle, like penguins as it reduces your surface area and conserves bodyheat.
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