Nike Zoom Rival Distance Track Spike Size:3 it’s Nathan's first race vest

it’s Nathan's first race vest to feature the innovative Adaptive-Fit ™ Adjustable Sizing System

while the engineered mesh upper delivers a breathable and secure fit

and Achilles’ tendon

The soft perimeter binding prevents chafing so no matter how much you sweat

A large diagonal zipper and size pockets allow for easy access to larger items like extra layers and smaller things like keys and nutrition

Nike Zoom Rival Distance Track Spike Size:3 it’s Nathan's first race vestNike Zoom Rival Distance Track & Field Distance Spikes A note on unisex sizes of this item: Listed sizes are men's. Add 1. 5 to get equivalent women's size. Ex: listed size 8 = women's size 9. 5. With 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