The soft air-textured yarn (ATY) is created using only one step, which is the first innovation in the world, and is characterized by the functionality of the filament and a consistent feather-like fluffy feel of staple. The fineness of the composite covered yarn is less than 40 D; therefore, the yarn is extremely skin-friendly and comfortable. Hsin Jung Fiber has made a breakthrough in producing elastic ATY that provides comfortable hand feeling and considerable economic benefits, and can be manufactured in an efficient manner. ATY can satisfy the diverse requirements of end products in terms of functionality and handfeel. With costs reduced and time efficiency increased, the production of ATY is promising for customers.