Rivals beware. The lightweight speed and aggressive traction of the Nike Zoom Rival XC are no match for the competition. Lace them up and experience adjustable support and lockdown courtesy of the Dynamic arch band and Flywire cables wrapping the midfoot and holding you securely in place over the footbed.These spikes feature a wider forefoot construction allowing increased toe splay that creates a larger platform for more powerful takeoffs. Combine that with strategically placed lugs around the outsoles perimeter and youre looking at more explosive speed than ever before. Breathable mesh upper has a wider forefoot construction allowing for increased toe splay and a more natural powerful stride. Dynamic arch band works with Flywire cables wrapping the midfoot and delivering supportive lockdown over the footbed that can be adjusted through the shoes laces. Cushlon midsole for lightweight responsive cushioning with every step. Rubber is removed in the midfoot exposing a portion of the midsole for increased flexibility lighter weight and reduced debris from the course. Lugs are placed strategically around the outsoles perimeter delivering aggressive traction and explosive speed. Includes 7mm pyramid spikes and a wrench.