These running socks are perfect for long-distance running, including half marathons, marathons, trail running, and ultra-running. They are also suitable for indoor and track-and-field running, or for anyone who wants extra comfort for their feet. The socks are made of breathable and sweat-wicking materials, with technical ventilation channels that keep your feet fresh, dry, and cool. The heel and toe are reinforced with extra cushioning to maximize comfort and prevent friction and blisters. The socks also have an increased arch brace to add compression for plantar fasciitis.