Unisex Nike Zoom Rival M 9 US Men's Size (Women's):9.5 (11.0) It is the lightest

It is the lightest

Simply step into the FlipBelt like a pair of pants

Sharkshin upper for a weightless feel underfoot

Early stage Meta Rocker for a smooth ride

Unisex Nike Zoom Rival M 9 US Men's Size (Women's):9.5 (11.0) It is the lightestVersatile spike suitable for events ranging from 100m to 1500m as well as jumping hurdling events. Phylon foam in the heel provides lightweight cushioning. Extended Pebax spike plate for terrific traction, but also to act as a midfoot shank for stability. 7 spike configuration for optimum performance. Single layer mesh with no sew overlays for enhanced ventilation. All sizes are in mens US with womens equivalent in brackets