The i-Run team says
The women's Nike Ja Fly 4 athletic shoe pushes you to break your speed records in sprinting events with or without obstacles.
What type of sportswoman uses the Ja Fly 4?
The Ja Fly 4 track and field spike is aimed at beginner to advanced sprint athletes.
What sports is the Ja Fly 4 recommended for?
Suitable for competitions on sprint tracks and regular training.
What distance is the Ja Fly 4 recommended for?
It is recommended for sprint events from 60m to 400m and also for hurdles.
How can the Ja Fly 4 be used?
+ The Ja Fly 4 spike is Nike's lightest sprint shoe.
+ A spike without a carbon plate, but with hexagonal embossing for a smooth, dynamic feel.
- The Zoom Ja Fly 4 spike is not intended for long distances (middle distance / long distance).
Why choose the Ja Fly 4 athletics shoe?
It is designed for the specific needs of the sprint:
- Lightweight spike
- More rigid Pebax plate in key areas: propulsion and traction
- Breathable uppers, woven for more support.
What's new in Ja Fly 4?
Compared to the previous version, the Nike Ja Fly 3, this version offers:
- Reduced weight
- A new, more supple woven upper for greater support: the upper part of the shoe wraps around the foot
- A computer-designed Pebax sheet providing extra rigidity in key areas
- Straight Nike Racing laces with slight elasticity to lock the foot in place
Features of the Ja Fly 4
- Ja Fly 4 cushioning
This shoe has no special cushioning, as it is designed for sprinting and maximum feel on the track.
- Ja Fly 4 upper
The redesigned woven upper enhances safety and support with a lighter weight than its previous version and more breathability.
- Ja Fly 4 outsole
The new plate, which incorporates computer-designed hexagons, provides rigidity in key areas for taking off from the start line and maintaining your speed.
- 7 removable spikes for traction and support
- Spikes and keys supplied
- Non-removable insole
- Weight recorded at i-Run: 128g in size 40
- Colours: neon pink, black and orange
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