Functional socks made use of different materials composition, knitting structure and finishing enhancing textiles moisture and antibacterial functions, as well as comfortable hand touch for the elderly in elderly homes, hospitals and our society. The functional socks can improve feet physiological condition such as dry skin and poor blood flow to the lower limb. Functional materials with specific structure design and treatment on sock structure provide moisture buffering in micro climate environment, moisturise foot skin, reduce bacterial reproduction and provide better wearing comfort sensation.