Primeknit upper - Wraps the foot in adaptive support and ultralight comfort.
Supportive cage - Locks down the midfoot.
FitCounter - Moulded heel counter provides a natural fit that allows optimal movement of the Achilles.
Boost Midsole - Has an amazingly bouncy feel without being too soft, and that makes for a light, fast run.
Torsion System - For a stable ride.
