The adidas F50 Hyperfast League Mid FG KJ3421 Men's adidas F50 football boots from the Immortal DNA Pack are designed for play on firm ground. The Haloskin upper provides a responsive touch and lightweight feel, while the Haloshell+ mesh reduces the boot's weight to promote speed. Classic lacing ensures a secure fit, while an extended knit collar supports the foot. The outsole provides traction and stability on firm, dry turf. The 2D Sprintgrid pattern highlights the dynamic, sporty character of the model.