Official Marvel Captain America Blue Black Active Performance Crew Socks 98% Polyester, 2% Spandex Imported OFFICIALLY LICENSED MARVEL MERCHANDISE: Show your love for Captain America with these officially licensed crew socks from Marvel comics. ADVANCED MOISTURE CONTROL FIBERS: 3x1 ribbed for extra compression to provide comfort and stability STRATEGIC CUSHIONING: Allows for maximum shock absorption EMBEDDED ARCH SUPPORT BAND: Elastic ribbed band for arch support to reduce foot fatigue VENTILATED MESH INSTEP: Mesh instep with ventilation channels to provide advanced moisture transportation for dryness and breathability