Break away from the pack in the men's New Balance MD800v5 Middle Distance Track Spikes. Worn by Team New Balance athletes, the 800 spike can help you break your next PR. Designed for speed and performance, the MD800v5 has an updated forefoot plate, carbon fiber insert and a lighter upper. Tech Specs & Features: Ideal for 800m - 3K racing. Skeletally-engineered FantomFit upper that provides ultra-lightweight fit and support. Breathable mono mesh and laser-cut film upper pattern Shark skin TPU heel 6 quarter-inch spike configuration for optimal traction RL-2 last Weight: 4.5 oz. (Size 9) Fit: True to Size Outsole: Polymer/Pebax® 6-Spike Plate Upper: Synthetic/Mesh