Total Freedom. COOLMAX® Freshness. Designed for summer adventures, fast-paced trail runs, and active hikes, HYRUN COOLMAX® Low Cut Socks deliver a lightweight, breathable feel that moves naturally with your feet. Thanks to COOLMAX® fiber technology, moisture is quickly wicked away to help keep your feet drier, even when the effort intensifies or temperatures rise. Breathable, fast-drying COOLMAX® fiber Low-cut design for a lightweight, discreet fit inside the shoe Ventilated zones to help reduce heat buildup Targeted arch support for enhanced stability Toe separation design to reduce friction Anti-friction cushioning for long-lasting comfort Perfect for moving faster, hiking longer, and staying fresh from the first mile to the last.