Nike ZoomX Dragonfly Track Spike Size:12.5 30% Recycled polyester upper mesh

30% Recycled polyester upper mesh and collar

50/50 cotton/poly

Heel & toe cushioning

Reflective adjustable back strap closure

The main crossbody strap that can be worn on either shoulder

Nike ZoomX Dragonfly Track Spike Size:12.5 30% Recycled polyester upper meshNike ZoomX DragonflyTrack & 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. These elite racing spikes are made to fly. Reach your personal best on the track with the Nike ZoomX Dragonfly. Its lightweight, fast design is made for 1,500 to 10,000 meter races. Fast, Efficient Energy Return Nike ZoomX foam is incredibly responsive and