Setting the bar high with support. For the serious high-jump competitor, the Nike Zoom HJ III Track and Field Shoe provides high-end stability in a lightweight construction engineered for explosive take-offs. Synthetic and mesh upper for breathability and comfort. Midfoot strap provides support and stability at foot plant to help prevent slipping inside the shoe. Full-length Phylon midsole for lightweight cushioning. Sculpted midsole arch with carbon fiber shank for support. Seven removable spike pins for traction.