"The Brooks Hyperion Max 2 is a lightweight yet highly cushioned performance trainer built to go fast and far. Featuring an upgraded midsole with nitrogen-infused DNA FLASH v2 cushioning, which is nearly 10% more responsive than its predecessor, the Hyperion Max 2 delivers a lively underfoot sensation with every step. Meanwhile, an extra 2 mm of foam in the forefoot offers ample protection on long runs. The shoe's RapidRoll technology enhances speed and is paired with a SpeedVault Plate to facilitate quick turnover, making it easier than ever to achieve faster running times."