Size: One size( Women’s shoe size 5-9). Material: Made of premium quality combed cotton and 100% silicone gel grips on the bottom. Package include: Set 1 – 1 pair of black; set 2 – 3 pairs of black; set 3 – 3 pairs of including black, grey, pink ; set 4 – 6 pairs of including 2 pairs black, 2 pairs grey, 2 pairs pink. Non-slip-grip: Featured non slip dots on the bottom of the socks.They offer better grip for improved stability & balance so that you can stay safe,avoid injuries and have better control of your body movements,even without a mat. Working as womens yoga socks,barre socks, pilates socks, ballet barres socks, dance socks, exercise socks, yoga shoes, barre shoes, pilates shoes. Hygienic: Womens yoga socks provide a barrier between your foot and the floor,mat,and equipment,protecting your feet from unwanted dirt and germs.Non skid socks with open top design easily absorbs and evaporates sweat,keeping your feet dry without bacteria and bad odor.