The FuelCell SC Elite v4 is a race day shoe designed for the moments when seconds really do count. The propulsive feeling of FuelCell is combined with a thinner carbon fiber plate, offering superior energy return in a lightweight package. Features: Years of research went into perfecting the SuperComp Elite v4 containing a FuelCell midsole made with PEBA Energy Arc pairs sport-specific carbon fiber plate geometry with strategic midsole voids, designed to increase stored energy to deliver a higher amount of total energy returned Rocker profile for smooth, natural feeling transition from heel to toe Solid rubber outsole 188 grams (6.6 oz)