1.can be blended by cotton & Polyester 2.elastic recovery capacity 3.color fastness and durable 1.elastic recovery capacity2.color fastness and durable3. Main specifications 21S to 32S,4.a polyester-cotton blend series,T / C 65/35 80/20,70/30, and so on.5.used to produce fabrics, socks, sweaters, underwares, gloves, carpet etc. dyed polyster yarn for sock