FuelCell midsole foam with approximately 3% bio-based content delivers a propulsive feel to help drive you forward; 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; Angular midsole design reduces weight; Outsole designed for superior traction; Soft, plush mesh upper for breathability and comfort; Best for Everyday, Race; Cushion: Extra Soft; Support: Neutral; Heel to Toe Drop: 6mm; Weight: 212 grams (7.5 oz)