Supportive flat-knit upper

Underwire security - Underwire design supports each breast individually for a locked-in feel

Elastic back waist

Heavy duty version is recommended for high impact sports

smooth feel

Unisex Nike Zoom Rival Distance US Men's Size (Women's):4.0 (5.5) Supportive flat-knit upperWith a lightweight, breathable upper and cushioned midsole, this adaptable spike dials you in for a wide range of middle and long distance races. It takes learnings from the game changing Dragonfly spike to give you efficient energy return for the tough middle laps and top end speed as you kick into the homestretch. Cushion for the Push Added cushioning at the midfoot and heel give you the comfort needed for longer distances and a smooth, propulsive