Experience energized runs in the Brooks Ghost AMP, built to deliver a smooth ride with an extra burst of forefoot power. SpringRamp technology works with nitrogen-infused DNA HYPE cushioning to create a soft yet responsive feel that helps you push off with momentum, while the breathable warp knit upper keeps your fit secure and comfortable at any pace. Designed for runners who want a lively, propulsive ride, this performance trainer brings speed-ready energy to every mile. Design: Featuring new SpringRamp forefoot technology designed to help you push off the ground with greater forefoot pop and momentum The lightweight warp knit upper is built for breathability, temperature control and comfort - with structure and lockdown to help secure the foot at high speed Gusseted tongue for midfoot lockdown In-Shoe Comfort: New nitrogen-infused DNA HYPE cushioning, a combination of PEBA and EVA, blends softness and responsiveness to pump up the thrill Additional Details: Offset: 6 mm Midsole Height: 28:22 Total Stack Height: 36:30