Design: Updated upper locks down your foot for a secure feel Streamlined design allows for distraction-free comfort and barely-there feel SpeedVault Race+ Plate is made using Additive Molding, a new technology that uses bio-based materials for near-zero waste RapidRoll Rocker, the curved sculpting of the midsole, works with the carbon fiber plate to propel you forward In-Shoe Comfort: DNA FLASH v2 cushioning helps to absorb impact and keep your legs feeling fresh from start to finish Additional Details: Weight: 7.8 oz / 221.1g Midsole drop: 8mm