The METASPEED Sky 2 racing shoe is designed for stride or cadence-style runners who are looking to start fast and finish faster. The main difference between both shoes are the carbon plate positioning and shape. The METASPEED Sky 2 shoe's reconstructed carbon plate helps you generate more compression at footstrike and a more propulsive toe-off. Meanwhile, the midsole features a greater foam volume, which helps create an energized rebound.