I believe everyone knows the use of down jackets, but they do not know its history. Today, the editor will take you to the down jacket manufacturer to find out what is the warmest down in the down jacket!

Antarctica is the coldest region in the world. Its annual average temperature is minus 40 degrees Celsius. At the same time, it is also an inland area with extremely strong wind. There are strong winds of about 10 levels each and 300 days, and the wind speed is as high as 19.4m/s. But in this extremely cold environment, there is an animal-the emperor penguin, which can survive this kind of weather, all thanks to its super warm feathers.

This super down jacket is divided into three layers inside and outside. The outermost feathers are called profile feathers. The roots of this feather are very hard, and the rachis are short and wide. Although this layer of feathers is not very dense (there are 9 profile feathers in a square centimeter of skin), their arrangement is very symmetrical. It is neat and looks like fish scales on the surface. It is the short and hard texture of the profile feathers and its uniformly arranged structure that make it a strong protective layer. This layer of feathers can resist the attack of strong winds and prevent the skin from being stabbed by the ice spikes. At the same time: When the emperor penguin dives into the deep sea of ​​minus 1.8 degrees Celsius to hunt, it can also prevent the cold sea water from invading the skin and maintain the emperor penguin’s normal body temperature.