Grab a pair of these soft cotton, nylon & spandex blend roadrunner socks. Great fun with the unique roadrunner design. Cotton is widely preferred for softness. Nylon is used for strength and spandex is great for stretching power. These socks have great stretching quality wash after wash. Wear your roadrunner socks everywhere with shorts, jeans or everyday to work, school, shopping - just about everywhere! Most importantly these roadrunner socks are made with pride in the USA. Available in 2 unisex sizes - Adult Medium - fits shoe size 6-8-1/2 OR Adult Large - fits shoe size 9-12.