The correct storage method of down sleeping bag
Down sleeping bag is through the expansion of down to form an air warm layer to achieve heat preservation. In order to provide sufficient expansion space for down, professional down sleeping bags are three-dimensionally stitched, that is to say, the lining and fabric of the sleeping bag are not directly stitched together, but connected by a standing lining. In this way, the space in the sleeping bag is changed from a pocket to a box, thereby ensuring the expansion space of the down. It can be seen from the above structure introduction that no matter what folding method you use, the three-dimensional space in the sleeping bag is actually flattened, so in theory, any folding method can be used for down sleeping bags.
However, from our practical experience, a sleeping bag that is stuffed randomly has better compressibility than a sleeping bag that is rolled up. And theoretically speaking, the folding position of a sleeping bag that is randomly inserted is very random, and a certain part will not be aging due to long-term repeated folding; on the contrary, the rolled up sleeping bag will have a relatively fixed fold, making it It is more prone to aging. However, you must not be too strict, because the aging is only theoretically speaking. In actual use, the sleeping bag cannot be used because the zipper is damaged or scratched is far greater than the sleeping bag aging due to folding. In addition, when the down sleeping bag is not used for a long time, it should be stored in a bag that is twice the size of the original sleeping bag cover, so that the down will not affect the bulkiness due to long-term compression.