These Trouser socks help in reducing swelling and aching in the legs. Great for pregnancy & flight travel or sitting for long periods. Compression improves blood flow, aids with circulation, and keeps your feet energized. Great for running, athletic activities, & nursing, or standing all day. 12-14 mmHg Graduated Compression. Comfortable heel and toe without compression. Features: *Material: 87% Nylon 13% Lycra *Fits Women's Shoe Size 5-10 (Socks Size: 9-11) *Styles and colors as seen in the picture. *Choose between colorful patterns & colored solids *Machine wash with like colors. Product Information Size: 9-11 Sock Colors: Assorted Color