Racer ready? You bet, thanks to SmartWool's new 4-Degree fit system and ultra-light heel and skin cusion. • 4-Degree Banded Fit System for all day performance fit • WOW Technology in High Density Impact Zones to reduce shock & abrasion • SmartWool inside for moisture, temperature, and odor control • Duroyarn™ reinforcement for added comfort & durability • Strategic Mesh Zones for maximum ventilation • 59% Wool, 39% Nylon, 2% Elastic |