Nike 3 Pack Dri-Fit Fly Crew 1 Socks - Men's To keep you flying through workouts, Nike Dri-FITŪ Fly socks contain a comfortable, half-cushion arch. It supports your feet with an outstanding fit that won't slip during movement. Durability has also been enhanced with a reinforced heel and toe area. Dri-FIT construction wicks away moisture to keep your feet dry. 59% polyester/25% nylon/13% cotton/3% spandex. Imported.