Model [ MMD800B4]MD800v4 Spike - Basin - Men's Team Sports Shoes Track & FieldYour goal is to get to the finish line, faster. Join the ranks of runners everywhere using the 800v4 to do it. Worn by Team NB athletes, the men’s 800v4 middle distance spike is built for competition.This shoe has spikes or cleats and is designed for use on specific terrain Weight: 134 Grams (4.7 oz) FantomFit is a skeletally engineered upper that provides ultra-light support and fit. It is created by fusing two extremely thin materials with a no-sew process Laser cut film upper pattern Breathable mono mesh Removable spikes for superior traction Standard spike size is 1/4 inch 6 metal spike configuration provides the best possible traction even on the most challenging terrain 6 spike Pebax® plate offers a high-strength thermoplastic polymer outsole with great flexibility and impact resistant properties for long lasting durability Shark skin TPU heel Ideal for 800m to 3000m