Socks are important field from knitting garment sector, it is daily and widely use in our life. Socks are one type of circular knitted fabrics which are characteristic by highly extensible with elastic recovery and semi-permanent deformation which give it easy wear and foot comfortable. Regenerating cellulosic fibers are type of eco-friendly fibers which have good moisture absorbent, biodegradable and antibacterial itself. The produced study is concerned with producing socks with 30/1 ring spinning yarns from three different kinds of regenerated cellulosic fibers ( viscose, bamboo, Tencel), using two different socks machine in number of needles ( 200, 168 needle per diameter). The effect of machine gauge and type of material on the performance properties of the produced socks are investigated. The tested properties were thermal conductivity, air permeability, bursting, Surface roughness (MIU,SMD), abrasion, pilling . The results pointed to both factors ( no. of machine needles and type of yarn are significant effect on tested properties, but the significance of the of Type fabric is more significant than of machine effect. Also bamboo and Tencel fabric were the most significant effect on the tested characteristics.