What makes acrylic athletic socks so popular?
Acrylic fibers wick perspiration away from the skin to the surface of the sock, where it can evaporate. Cotton and wool absorb nearly twice as much moisture as acrylic. Consequently, the fibers compress, reducing both the cushioning and resilience, both of which can minimize the effectiveness of an athletic sock. The official socks of the National Football League (NFL) and the National Basketball Association (NBA) are made of acrylic.