For trail runners in need of speed, the carbon-plated FuelCell SuperComp Trail is designed to provide energy return and best-in-class traction. Energy Arc pairs advanced carbon fiber plate geometry with strategically shaped and placed midsole voids, designed to increase stored energy to deliver a high amount of total energy returned. Mesh upper. Cotton lining and ethylene vinyl acetate insole. Lace-up closure in a round to silhouette. Vibram Megagrip offers grip on both dry and wet terrain. Vibram Lightbase is designed to reduce overall sole weight and thickness while maintaining grip, traction and durability.