Size Chart Enjoy a classic design, stylish color options, and performance-enhancing compression technology. These women's compression socks support muscles, increase circulation, reduce the onset of muscle soreness, and help prevent injuries. Recharge in style. Features: - Encircles your muscles more than 300 times in graduated compression - Halo top-band keeps socks in place below the knee - Technical performance knit delivers exceptional air flow - Moisture-wicking fibers help keep you cool - Supremely smooth yet durable - 85% Polyamide (Nylon), 15% Elastane - 20-30 mmHg graduated compression - Low-maintenance ownership - machine wash and dry