Nike React foam midsole provides support for the 3 phases of a runner's stride.
It helps create flexibility at toe-off, a smooth ride at mid-stance and cushioning at contact.
The black speckle is inspired by runners like you when kicking up asphalt while logging miles on those soft-gravel backroads.
Less material in the shoe means you're closer to the foam, creating a softer, more responsive experience.
Increased rubber at the outsole helps deliver traction and durability.