4 pairs no show liner socks women's low cut cotton nylon boat invisible hidden socks non-slip for flats (shoe size 9-11, mesh 2black+2nude) jarseen jarseen socks is designed to be a true low-cut durable nylon cotton sock. you have to try it to believe it. about unique design design low-cut, shoe shape. design of cotton base and nylon blend splicing technology, comfortable to wear. design silicone gel circle to keep them firmly on your instep. with silicone patches at the sole to prevent slipping inside of the shoe. designed to be truly hidden to the invisible eye in a ballet shoes, pumps, high-heel shoe, sneakers, flat shoe, boat shoes, loafers, ect.