Features: DNA Hype Midsole: Brooks' Peba blended midsole foam at a 36C durometer that delivers comfortable landings and a responsive forefoot - a key highlight of the Ghost AMP that balances plush cushioning with energy return SpringRamp Technology: A propulsive geometry built into the Ghost AMP's midsole that encourages a more energetic toe-off - useful on tempo days when you want a little extra snap in your stride Knockout Strobel Construction: Brings the cushioning layer closer to your foot by integrating the strobel directly into the midsole stack, so the underfoot feel is more immediate and connected Warp Knit Textile Upper: A lightweight knit construction that wraps the foot with a soft, breathable feel - keeps things airy on longer runs without feeling loose or unsupportive Updated Eyelet Construction: Revised lacing geometry that gives the Ghost AMP a more flexible, adaptive fit across the midfoot - accommodates natural foot movement without creating pressure points Specs: Heel-to-Toe Drop 6mm Weight - 226.79g/8oz Terrain - Road Support - Neutral Cushion - Medium