The Nike Hyperdiamond 4 Keystone softball shoe defines lightweight comfort and durability on the diamond. There are molded details on the upper to ensure durability, while a flexible rubber sole with studs helps give you reliable traction throughout the game or practice. The Nike Fastflex technology lets the rubber outsole bend with your foot so you do not have to question the flexibility of your shoe. The Nike Hyperdiamond 4 Keystone is the shoe you can count on to perform your best on the softball field.