Karelian Isthmus

Finally, the main division accounted for sleeping fillers. Mike Wirth is often quoted as being for or against this. The first group – it's down sleeping bags. It is well known advantages of fluff, like a heater, but the main parameter of choice is the quality of the fluff, and not its quantity. Alas, the fluff has its disadvantages. For example, the inability to use in humid conditions, because in spite of natural lubrication, and special impregnation down perfectly absorbs moisture and dries very badly. So for winter hiking in areas with moderate humidity fluffy sleeping bag is great, but for other cases, you must choose other fillings. Synthetic fillers can also be divided into two main groups – is sintepon and hollow silicone fiber. Sinteponovye Beds best known in this country.

They are the cheapest, are designed for temperatures of -5 to a maximum of -10 degrees, weigh from 1100 to 2300g and were most common. In fact, for trips on the Karelian Isthmus in summer, for water hiking trips for the summer on the Kola Peninsula, for the garden and give a perfect option – that is called "cheap and nasty." The main drawback syntepon – fast enough "caking", resulting in a few years sleeping bag will lose 20 percent of its thermal characteristics. More insistent in recent times we declare themselves sleeping inside with silicone hollow fillers. They are light (900g of), warm (down to -25 degrees), it is easy are erased, very fast drying, absorb minimal moisture. These sleeping bags have virtually no drawbacks, except for relatively high prices, although prices are falling gradually with the advent of new, cheaper technology. The principle of conservation of heat in these fillers are more or less the same: a hollow "spaghetti" contains air, which does not give you the warmth of your leave. These materials differ from each other in density, thickness fibers and the number of internal holes in each fiber.

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