The i-Run team says
The Nike Ja Fly 4 athletic shoe for women pushes you to break your speed records in all your sprint events, with or without obstacles.
Ja Fly 4, for what type of athlete?
The Ja Fly 4 spike is designed for athletes practicing sprints, from beginners to advanced.
Ja Fly 4, for what use?
Suitable for competitions on sprint tracks and regular training.
Ja Fly 4, for what distance?
It is recommended for sprint events from 60 m to 400 m and also for hurdles.
Ja Fly 4, for what use?
+ The Ja Fly 4 spike is Nike's lightest sprint model.
+ A spike without a carbon plate but which provides good flexibility and dynamism thanks to its hexagonal cells.
- The Zoom Ja Fly 4 spike is not intended for long distances (middle-distance / long-distance)
Why choose the Ja Fly 4 athletic shoe?
It is designed for the specific needs of sprinting:
- Lightweight spike
- Pebax plate more rigid in key areas: propulsion and traction
- Breathable and woven upper for better support
Ja Fly 4, what's new?
Compared to the previous model, the Nike Ja Fly 3 offers:
- Reduced weight
- A new woven upper that is more flexible and offers better support: the upper part of the shoe that wraps around the foot
- A computer-designed Pebax plate that provides more rigidity in key areas
- Slightly elastic "straight" Nike Racing laces that lock the foot
Characteristics of the Ja Fly 4
- Cushioning of the Ja Fly 4
The model does not have specific cushioning as it is intended for sprinting and a maximal feel of the sensations on the track.
- Upper of the Ja Fly 4
The redesigned woven upper enhances security and support with a lighter weight than its previous version and offers more breathability.
- Outsole of the Ja Fly 4
The new plate, which integrates computer-designed hexagons, provides rigidity in key areas to take off from the starting line and maintain your speed.
- 7 removable spikes: traction and support
- Spikes and key provided
- Non-removable insole
- Weight observed at i-Run: 128g in size 40
- Colors: royal blue, fuchsia, orange, and lime green
For who and for which use?
Discipline : Running
Gender: Woman
Stability: Neutral
Use:
Intensive
(more than twice a week)
Surface: Track
Weight of runner: Under 65kg
Shoe weight: 128g
