How to choose sleeping bags for outdoor travel

Classify by material. At present, the sleeping bags on the market are divided into down sleeping bags and synthetic fiber sleeping bags (usually cotton sleeping bags) according to their materials.

(1) Down sleeping bag. The material of down can be divided into white goose down, white duck down, gray duck down, waterbird down and so on. Advantages: good compressibility, good warmth, light weight, small size, long service life, good maintenance can be used for more than 10 years. Disadvantages: because this material is not only easy to absorb moisture, but also not easy to dry once exposed to moisture, the warmth of wet sleeping bags is quite poor, so the sleeping bags made of this material are not suitable for use in wet environments. Now there are a lot of chemically treated down sleeping bags, saying that they are not afraid of dampness, but they will not make comments if they have not been used here. Down sleeping bags are also more expensive. Selection and purchase skills: when choosing and buying down sleeping bags, its fabrics should have certain dirt resistance and waterproof properties; the more down filling weight, the better the heat preservation effect, and under the same weight, the higher the fluffiness, the better; the general basic elasticity is 550-fill, the high quality is the fluffiness of 650or700-fill, the lightest, and properly maintained when its service life is three times longer than that of synthetic fiber.

 

(2) synthetic fiber sleeping bag (down cotton). All kinds of chemical fiber filling sleeping bags are the same, slightly heavier than the down sleeping bags of the same class, difficult to squeeze and fill more space in the backpack, with the increase of use time, the thermal performance will slowly decrease until it is impossible to make, the service life is only 3 or 4 years.