Size Chart Designed for both style and functionality. These women's socks offer dynamic, targeted compression that increases circulation, reduces swelling, and helps alleviate pain associated with overuse injuries like Plantar Fasciitis. Choose from a wide range of bold colors, and get ready to take your athletic performance to the next level. Features: - Encircles your muscles with dynamic compression - Anatomically sized arch circumference and shoe size provides an exceptional fit for any athletic shoe - High-tech fibers reduce moisture and provide comfort and durability - Anatomically padded cushioning, anti-blister, anti-hotspot - Nearly invisible length for added style - 89% Polyamide (Nylon), 11% Elastane - Low-maintenance ownership - machine wash and dry