Through its unique structural design, such as the air sandwich in the three-layer fabric structure, air-layer fabric can effectively store air and improve the warmth effect; at the same time, the tiny holes on its surface and the large void in the center enhance the breathability and moisture absorption, which makes the fabric effective in regulating the body temperature while keeping it dry. In addition, the air-layer fabric is soft and lightweight, with a comfortable handfeel, making it suitable for a variety of lightweight and portable applications.