Cold, wintry days wont be a problem in the Fitsock ISW Isolwool Trail Cuff 3 Pack socks are engineered from top to bottom to wrap your feet in comfortable efficiency. The quality Merino wool helps to fight bacterial growth, keeping these socks fresher, longer. With Max Arch Support youll love the supportive fit that alleviates fatigue. Features a taller cuff for better protection on trails. Precision Toe provides a contoured fit and eliminates bunching and irritation. FLOWTEK Channels promote airflow on all sides of the foot, dispersing heat and moisture.