Nike Ja Fly 4 Sprint Spikes Nathan Widely used by the best

Widely used by the best runners in the world

Burn Time: 40 Hours (Low)

S- Men's 5

Heartbreaker Firehouse Singlet

Yarn in upper contains at least 50% Parley Ocean Plastic and 50% recycled polyester

Nike Ja Fly 4 Sprint Spikes Nathan Widely used by the bestBe the first to know about restocks & new drops. Register for our Speed Shop Restock List here. Nike Ja Fly 4Track and Field Sprinting SpikesFinish through the tape 1st in the Nike Ja Fly 4, a sprint spike made to help you set personal records in everything from the 60 to 400 meters. Our lightest Nike Sprint spike sports a revamped plate for enhanced stiffness and an updated upper for better breathability, so you can stay focused on doing your best.