Durable material wicks sweat & dries really fast|Locked-in fit design with more compression keeps sock securely on heel for an adjustment-free fit|Breathable mesh on top of foot & calf for ventilation|Medium cushioning placed strategically throughout foot protects high-impact areas without added bulk|Built-in arch support helps reduce foot fatigue|Odor control technology reduces odor in the sock|Seamless toe delivers superior comfort & reduced irritation