Why Is The Same Difference Between Down Jacket?

The weather is very elusive and the temperature is high and low. On the two day, the down jacket will come out again. Why do some small partners feel cold in their down coats? In addition to the fact that the temperature is really low, it is possible that the down jacket has not been selected.

The thermal insulation of down jacket is well measured, and there are two key indicators. One is the number of feather down, the more the amount of down, the better the degree of warmth.
Another is the fluffiness of the down. Some down garments will indicate that the higher the bulkiness is, the bigger the down will be, the better the warmth will be. Fluffy is measured by Fill (Peng), such as 600Fill, 700Fill and 800Fill.
Therefore, the down jacket should be warm, with a fluffy and high filling. These two values should be combined to see, for example, the amount of 190g& and the 800Fill of the fluffy 800Fill is about the same as that of the 250g.
In addition, down has velvet and duck down. Goose down (below left) is fine, soft, long and bulky, and its heat retention is better than eiderdown (bottom right).
Besides the amount of filling and fluffiness, the thermal insulation of down clothing and the performance of surface materials are also very important. Because the moisture retention of the down is greatly reduced, so the better the resistance to water and moisture, the higher the warmth. The higher the wind resistance, the better the warmth.