The Nike Ja Fly 4 is a sprint spike designed to help you beat your personal records in events ranging from 60 to 400 meters. This entry-level sprint spikes has been updated wit a stiffer plate and lighter, more breathable upper to keep you focused on achieving your best. 

 

Model Number: DR2741

Width: Standard

Support Type: Neutral

Weight: 140g

Best for: Track Racing, Sprints (60m, 100m, 200m, 400m)

 

UPPER

• An updated woven upper gives you security, breathability and containment at a significantly lighter weight than previous model
• Nike Racing shoelace is lightweight with notches and just a little stretch that allows for a secure fit that stays tied in all conditions.

MIDSOLE

• A new plate using computationally designed hexagons delivers stiffness in key areas to help you fly off and maintain speed