- FLEXFILM upper for improved fit and flexibility without added weight
- Water drainage ports for quick drainage if the shoe becomes wet
- Surface: Road, Track, Cross Country
- Offset: 4mm
- Heel Stack Height: 18mm
- Forefoot Stack Height: 14mm
Shoes with a 4mm heel-to-toe offset deliver a more natural ride, letting your feet and body do more work while relying less on the shoes’ cushioning and stability features.
A strong, lightweight material is melded to the upper, which allows for fewer layers in the shoe. The result is a seamless, flexible feel.
FASTWITCH 6 INFOGRAPH
The underfoot feel and amount of impact protection provided by the compressing materials between the foot and running surface.
The level of pronation control built into the shoe. Pronation is the inward rolling of the ankle through the gait cycle.
The difference in height between the heel thickness and forefoot thickness of the shoe.