EK UDAAN Unisex Woolen Thermal Wear Thumb Socks (Multicolour, Free Size) - Set of 3 EK UDAAN thermal socks for men's are made with acrylic wool yarn/ fiber available in the market. These socks have a long ribbed welt to keep a grip with style. It keeps your feet warm and cozy in winters. These socks are in multi colour like dark grey, light grey, black, brown, navy .