Size Chart Built for versatility. These men'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 test your limits. 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