Women's 3 pair pack Hidden Cotton Liner No-Show Socks S : Fit for shoe 4.5 - 6 M: Fit for shoe 6.5- 10.5 Uniquely designed with a silicone finish that will hug your feet & won't slip off. Designed with non-skid silicone patches to prevent slipping inside of the shoe. Washing at 30 degree or cold water, No tumble dry, No iron