Regulates temperature for superior warmth. Legendary toughness that holds up season after season. Antimicrobial. Naturally repels bacteria and odor. Performance fit. Socks stay put from first chair to last chair. separate Regulates temperature for superior warmth. Legendary toughness that holds up season after season. Antimicrobial. Naturally repels bacteria and odor. Performance fit. Socks stay put from first chair to last chair.