Fluffy Duck Down Three-Dimensional Heat Storage Outdoor Down Jacket Filling
Selected from the natural down from the core down-producing areas of high-quality duck breeds, such as the abdomen, neck and wings, these downs are presented in a unique reed-like shape, light and elastic, forming a sharp contrast with the flaky feathers, highlighting its excellent warmth retention performance. As a model of animal protein fiber, each duck down fiber contains the wisdom of nature, and the surface is densely covered with tens of millions of triangular tiny pores. These microstructures give down an extraordinary temperature regulation ability. In an environment with changing temperature, the spherical fiber can intelligently shrink or expand, just like a thermostat in nature, effectively balancing the temperature difference between inside and outside, creating a constant temperature and comfortable microclimate for the wearer. It can not only efficiently absorb the heat naturally emitted by the human body to form a warm internal circulation, but also cleverly isolate the invasion of cold air from the outside to ensure that heat is not easily lost, and keep the body warm even in extremely cold outdoor environments.