Machine Wash ELASTICITY AND EXTRA LONG - Women's thigh high socks are designed with extra long elasticity allowing you to easily pull the socks up to the over-the-knee position. Non-slip - The plus size thigh high socks are designed with a knitted, snug-fitting design. This design can prevent the socks from slipping and allows the socks to easily stay where you need them all day. FASHION PREFERRED - The long thigh high socks are high enough and very elastic. You can switch between three ways of wearing as you like: thigh high socks, knee socks, and everyday socks. This is the first choice for fashion today. MEETS ALL YOUR DAILY NEEDS - White and black thigh high socks can be easily matched with various uniforms, mini skirts, shorts, and other dresses. They can also be used as cosplay at Halloween parties, Christmas, and other festivals. BEST GIFT - The women's knee socks are very soft and comfortable, a wonderful and warm gift for lovers, wife, daughter, girlfriends, and female friends.—PA