Crush the course in the light and speedy New Balance® MD800v4 track spike!Ideal for track-and-field events ranging from 800 m to 3,000 m.Sleek, lightweight mesh and synthetic upper materials.Lace-up closure.Thin comfort tongue and collar.Textile lining offers a great next-to-foot feel.Thin foam insole.Full-length Pebax® plate offers the perfect blend of traction, flexibility, and speed.Aggressive six-spike configuration delivers maximum traction.Includes six removable spikes and wrench.Imported.Measurements: Weight: 4 ozProduct measurements were taken using size 8, width D - Medium. Please note that measurements may vary by size.