Far infrared blended yarn 75％ Elastic yarn 20％ Nylon yarn 5％    Specification:Gentleman socks, sports socks for boys; invisible socks, sports socks, casual socks for girls  

   Bamboo charcoal blended yarn 75％ Elastic yarn 20％ Nylon yarn 5％    Specification:Gentleman socks, sports socks for boys; invisible socks, sports socks, casual socks for girls