The main material of these socks for women is cotton, which is breathable and moisture-wicking to keep your feet cool and dry all day long. Polyester Spandex blended fabric has the properties of soft and durability. Toe & Heel is reinforced to against holes. "【Non Slip】The non slip feature is the most important. These footies stay on your feet in shoes when walking by the small grips inside on the heel. Choose a right size, now no more fixing socks again and again. ""【Truly No Show】These are EXTREMELY low cut no show liner socks, which only cover toes and invisible in your trendy shoes. They're great for a variety of lady's dress shoes, like Flats, Pumps, Ballerina, Oxford, Loafers, Slip-ons, high-heel shoes, sneakers, etc. ""【High Quality Material】KETKAR womens no show socks are made of 65% premium cotton, 20% polyester, 8% nylon, 2% spandex. The socks are comfortable, durable, moisture wicking and keep your feet dry all day long. Hand washing is recommended. ""【Made From Premium Cotton】Feeling soft and comfortable, moisture-absorbing and breathable, the thinner design prevents sweaty feet. And the anti-odor treatment controls odor and keeps your feet fresh all day long! ""【Specially Designed for Women】The non-slip silicone at the heel prevents socks from slipping down.The low-cut shoe design makes it invisible. No show and non slip socks with basic colors, which are super suitable for a variety of lady's shoes, such as flats, heels, sneakers, and loafers. "