Sleeping bags are one of the indispensable equipments for outdoor sleep. There are many varieties on the market, and the price is very different. The mystery is often puzzling. Outdoor sleeping bags are considered in terms of shape, materials and crafts. Now Xiaobian brings you a detailed introduction of "How to choose outdoor sleeping bags".
How to choose outdoor sleeping bags:
The shape of the sleeping bag includes the shape and personality of the sleeping bag. Because the shape of the sleeping bag is not complicated, there are only two kinds. One is Mommy and the other is envelope. Envelope sleeping bags are suitable for seasons with high temperatures such as summer or early autumn. The mommy sleeping bag is almost a symbol of a professional sleeping bag. It combines the design of weight, volume and better insulation.
Materials are the main reason for determining the price of sleeping bags. The fabric determines the durability and comfort of the sleeping bag, while the filling determines the insulation properties of the sleeping bag.
There are two types of fillers, one is fiber, which is what we call a cotton sleeping bag. The other is down. There are many types of fiber cotton, from stretch cotton to 3 holes, 4 holes or even 7 holes of cotton, as well as 3D cotton (Polarguard 3D produced by INVISTA) and Primaloft One. In terms of thermal insulation performance, 7 holes are better than 4 holes, and 4 holes are better than 3 holes. The principle is very simple, that is, the more air that can be enclosed, the less heat is exchanged, and the better the insulation performance. There are two main criteria for determining the insulation performance of down. One is the amount of cashmere, which is 80% or 85% of the label on the sleeping bag, which means that the down content of the down is 80% or 85%. Another is the bulkiness, which refers to the volume of a certain amount of down on the pressure of constant weight. It is the main factor determining the warmth performance. Therefore, it is an important indicator of the quality of down.
Process: At present, the production process of sleeping bags is not much different. Cotton sleeping bags generally adopt a double-layer parallel staggering process. The biggest advantage of this structure is that it does not allow heat to escape from the seam of the fixed cotton, and ensures that the cotton is still kept after cleaning. Uniform distribution, no breakage, ensuring excellent warmth retention.
The down sleeping bag basically adopts a trapezoidal lining and an invisible line process. The biggest advantage of this process is that the separate chambers are isolated from the down, preventing the piles from getting together and causing heat loss in other parts.
The above is a detailed introduction to "How to choose outdoor sleeping bags". Everyone buys a suitable sleeping bag according to their actual environment and time of use.
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