Under Armour 3 Pack Performance Tech Crew Socks In Black. The signature Under Armour logo is woven on each sock in dark grey with a stripe design on the toes. Fast drying durable fabric wicks sweat away and features mesh panels to keep feet cool. A Locked-In Fit design with cushioning and arch support. Please Note these socks are an Under Armour size Large which is a UK 9-12.5. 98% Polyester 2% Elastane.