68%Cotton 29% Nylon 3% Spandex Machine Wash Transparent mesh/lace socks makes your feet look very sexy and eye-catching, You could match it with your pants or shoes, Perfect gift for your female friends These socks material on the bottom, across the toes and around the ankle is cotton. The sheer part is silk blended fiber, which is lighter but sturdier and more see through than pantyhose material. In order to avoid damage and extend use time, hand wash with cold water. Do not bleach or tumble dry warm.cleaning separately will be better,machine wash is ok; we recommend you put these transparent socks in a lingerie bag,open-air drying. Package contains 6 pairs of socks. These see through socks are suitable for Summer, Vacation, Casual Outtings, Office, School, Home and Daily wear.This is also a great gift.