1.available聽for聽socks,聽underwear,聽knitting聽fabric,聽weaving聽fabric聽and聽sweaters聽 2)聽main聽spec.2070,3070,4070 3)聽comfortable聽and聽soft聽to聽the聽touch,聽possesses聽the聽smooth聽elasticity聽of聽nylon聽and聽the聽resilience聽of聽polyester