sprintstar wWomen's track spikes designed for the power sprinter in races up to 400 meters.Sprinting requires precision as much as power and speed. These women's track spikes are built for the technical sprinter. They feature a light, breathable SPRINTWEB mesh upper that locks the foot in place and a Pebax plate outsole for optimal energy transfer. Ideal for racing distances up to 400 meters.Weight: 4.7 ounces (size 7); Recommended events: 60m, 100m, 200m, 400m, 4x100m, 4x400mReinforced mesh upper for maximum heat exchange; SPRINTWEB forefoot designed to lock the foot down during event-specific motionsSynthetic overlays designed to hold the foot securely during all phases of the sprinting gaitSoft collar around the ankle to reduce pressure on the ankle and AchillesDesigned for efficient power and technical sprintersPebax plate outsole for ultimate energy return and durabilityImported