Warranty: 2 years.
These are the fibers located in the upper shoes that constrict the movement of the legs. This provides maximum support, stability, and is also to reduce the weight of shoes.
- Nike Free
Technology that delivers all the benefits of running barefoot. It is a system flex grooves in the outsole, providing a natural and unimpeded movement.
- Reflective elements
It is a reflective material that reflects light, thereby increasing your safety at dusk and darkness.